5x一39=56解方程 5x–39=56解方程
5X-39=56\u89e3\u65b9\u7a0b5X-39=56
5x=56+39
5x=95
x=95\u00f75
x=19
\u6269\u5c55\u8d44\u6599
1\u3001\u53bb\u5206\u6bcd\uff1a\u5728\u89c2\u5bdf\u65b9\u7a0b\u7684\u6784\u6210\u540e\uff0c\u5728\u65b9\u7a0b\u5de6\u53f3\u4e24\u8fb9\u4e58\u4ee5\u5404\u5206\u6bcd\u7684\u6700\u5c0f\u516c\u500d\u6570\uff1b
2\u3001\u53bb\u62ec\u53f7\uff1a\u4ed4\u7ec6\u89c2\u5bdf\u65b9\u7a0b\u540e\uff0c\u5148\u53bb\u6389\u65b9\u7a0b\u4e2d\u7684\u5c0f\u62ec\u53f7,\u518d\u53bb\u6389\u4e2d\u62ec\u53f7,\u6700\u540e\u53bb\u6389\u5927\u62ec\u53f7\uff1b
3\u3001\u79fb\u9879\uff1a\u628a\u65b9\u7a0b\u4e2d\u542b\u6709\u672a\u77e5\u6570\u7684\u9879\u5168\u90e8\u90fd\u79fb\u5230\u65b9\u7a0b\u7684\u53e6\u5916\u4e00\u8fb9,\u5269\u4f59\u7684\u51e0\u9879\u5219\u5168\u90e8\u79fb\u52a8\u5230\u65b9\u7a0b\u7684\u53e6\u4e00\u8fb9\uff1b
4\u3001\u5408\u5e76\u540c\u7c7b\u9879\uff1a\u901a\u8fc7\u5408\u5e76\u65b9\u7a0b\u4e2d\u76f8\u540c\u7684\u51e0\u9879\uff0c\u628a\u65b9\u7a0b\u5316\u6210ax=b(a\u22600)\u7684\u5f62\u5f0f\uff1b
5\u3001\u628a\u7cfb\u6570\u5316\u62101\uff1a\u901a\u8fc7\u65b9\u7a0b\u4e24\u8fb9\u90fd\u9664\u4ee5\u672a\u77e5\u6570\u7684\u7cfb\u6570a\uff0c\u4f7f\u5f97x\u524d\u9762\u7684\u7cfb\u6570\u53d8\u62101\uff0c\u4ece\u800c\u5f97\u5230\u65b9\u7a0b\u7684\u89e3\u3002
5x\u201339=56\u89e3\u65b9\u7a0b\u7684\u6b65\u9aa4\u4e3a\uff1a
1\u3001\u79fb\u9879\uff1a\u5c06\u542b\u672a\u77e5\u6570\u7684\u9879\u79fb\u5230\u5de6\u8fb9\uff0c\u5e38\u6570\u9879\u79fb\u5230\u53f3\u8fb9\uff0c5x=56+39
2\u3001\u5316\u7b80\u5f97\u5230\uff1a5x=95
3\u3001\u7b49\u5f0f\u4e24\u8fb9\u540c\u65f6\u9664\u4ee55\uff0c\u7b49\u5f0f\u4fdd\u6301\u4e0d\u53d8\uff1ax=19\u3002
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\u89e3\u65b9\u7a0b\u5e38\u7528\u7684\u65b9\u6cd5
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2\u3001\u5e94\u7528\u7b49\u5f0f\u7684\u6027\u8d28\u8fdb\u884c\u89e3\u65b9\u7a0b\u3002
3\u3001\u5408\u5e76\u540c\u7c7b\u9879\uff1a\u4f7f\u65b9\u7a0b\u53d8\u5f62\u4e3a\u5355\u9879\u5f0f
4\u3001\u79fb\u9879\uff1a\u5c06\u542b\u672a\u77e5\u6570\u7684\u9879\u79fb\u5230\u5de6\u8fb9\uff0c\u5e38\u6570\u9879\u79fb\u5230\u53f3\u8fb9
5\u3001\u53bb\u62ec\u53f7\uff1a\u8fd0\u7528\u53bb\u62ec\u53f7\u6cd5\u5219\uff0c\u5c06\u65b9\u7a0b\u4e2d\u7684\u62ec\u53f7\u53bb\u6389\u3002
6\u3001\u516c\u5f0f\u6cd5\uff1a\u6709\u4e00\u4e9b\u65b9\u7a0b\uff0c\u5df2\u7ecf\u7814\u7a76\u51fa\u89e3\u7684\u4e00\u822c\u5f62\u5f0f\uff0c\u6210\u4e3a\u56fa\u5b9a\u7684\u516c\u5f0f\uff0c\u53ef\u4ee5\u76f4\u63a5\u5229\u7528\u516c\u5f0f\u3002\u53ef\u89e3\u7684\u591a\u5143\u9ad8\u6b21\u7684\u65b9\u7a0b\u4e00\u822c\u90fd\u6709\u516c\u5f0f\u53ef\u5faa\u3002
7\u3001\u51fd\u6570\u56fe\u50cf\u6cd5\uff1a\u5229\u7528\u65b9\u7a0b\u7684\u89e3\u4e3a\u4e24\u4e2a\u4ee5\u4e0a\u5173\u8054\u51fd\u6570\u56fe\u50cf\u7684\u4ea4\u70b9\u7684\u51e0\u4f55\u610f\u4e49\u6c42\u89e3\u3002
5x=95
5x÷5=95÷5
x=19
解：5x=56+39
绛旓細5X-39=56 閭ｄ箞5X=95 X=19 鍝.,13,5x-39=56 5x=56+39 5x=95 x=19,4,56-39=17 17梅5=3.4,4,5x-39=56 5x=56+39 5x=95 x=95/5 x=19,2,5x-39=56 绉婚」锛5x=56+39 鍚堝苟鍚岀被椤癸細5x=95 鍖栫郴鏁颁负1 锛歺=19,2,
绛旓細瑙ｆ柟绋锛5x-39=56 5x=56+39 5x=95 x=19 妫楠岋細5x19-39=95-39=56
绛旓細鍥炵瓟锛5X-39=56 5X=56+36 5X=92 X=92梅5 X=18.5
绛旓細鎮ㄥソ锛屽瘨妯辨殩鏆栦负浣犺В绛旓細鏂圭▼鏄細5X-39=56 瑙锛5X-39+39=56+39 5X=95 X=95梅5 X=19 濡傛灉浣犺鍙垜鐨勫洖绛旓紝璇峰強鏃剁偣鍑汇愰噰绾充负婊℃剰鍥炵瓟銆戞寜閽紝锛堟垨鍦ㄥ鎴风鍙充笂瑙掕瘎浠风偣銆愭弧鎰忋戯級浣犵殑閲囩撼锛屾槸鎴戝墠杩涚殑鍔ㄥ姏! 浣犵殑閲囩撼涔熶細缁欎綘甯﹀幓璐㈠瘜鍊肩殑銆傚鏈変笉鏄庣櫧锛屽彲浠ヨ拷闂紝鐩村埌瀹屾垚寮勬噦姝ら!==...
绛旓細5x-39=56 绉婚」锛5x=56+39 鍚堝苟鍚岀被椤癸細5x=95 鍖栫郴鏁颁负1 锛歺=19
绛旓細瑙ｆ柟绋锛5x-39=56 5x=39+56 5x=95 x=19 瑙ｆ柟绋嬬殑鎰忎箟锛氳В鏂圭▼灏辨槸姹傚嚭鏂圭▼涓墍鏈夋湭鐭ユ暟鐨勫肩殑杩囩▼锛屾柟绋嬩竴瀹氭槸绛夊紡锛岀瓑寮忎笉涓瀹氭槸鏂圭▼銆備笉鍚湭鐭ユ暟鐨勭瓑寮忎笉鏄柟绋嬨備竴鑸В鏂圭▼涔嬪悗锛岄渶瑕佽繘琛岄獙璇併傞獙璇佸氨鏄皢瑙ｅ緱鐨勬湭鐭ユ暟鐨勫间唬鍏ュ師鏂圭▼锛岀湅鐪嬫柟绋嬩袱杈规槸鍚︾浉绛夈傚鏋滅浉绛夛紝閭ｄ箞鎵姹傚緱鐨勫煎氨鏄...
绛旓細5x-39=56鍙樻垚5x=鏄牴鎹В鏂圭▼鐨勬ц川銆傝В鏂圭▼锛5x-39=56 5x=56+39 5x=95 x=19 妫楠岋細5x19-39=95-39=56 瑙ｆ柟绋鐨勬楠わ細1銆佹湁鍒嗘瘝鍏堝幓鍒嗘瘝銆2銆佹湁鎷彿灏卞幓鎷彿銆3銆侀渶瑕佺Щ椤瑰氨杩涜绉婚」銆4銆佸悎骞跺悓绫婚」銆5銆佺郴鏁板寲涓1姹傚緱鏈煡鏁扮殑鍊笺6銆佸紑澶磋鍐欌滆В鈥濄傚湪瀹氫箟涓紝鏂圭▼涓瀹氭槸绛夊紡锛屼絾鏄...
绛旓細5X=56+39 5X=95 X=19 妫楠岋細褰搙=19鏃讹紝宸﹁竟=5X19-39=95-39=56=鍙宠竟 鎵浠=19鏄鏂圭▼鐨勮В 甯屾湜鎴戠殑鍥炵瓟鑳藉府鍔╀綘锛屽鏋滀綘璁ゅ彲鎴戠殑鍥炵瓟锛屾暚璇峰強鏃堕噰绾筹紝鍦ㄦ垜鍥炵瓟鐨勫彸涓婅鐐瑰嚮銆愰噰绾崇瓟妗堛
绛旓細1銆6x+3=9瑙ｉ姝ラ锛6x+3=9 6x=9-3 6x=6 x=6梅6 x=1 2銆8x-4涔14=0瑙ｉ姝ラ锛8x-4*14=0 8x-56=0 8x=56 x=56梅8 x=7 3銆7x闄や互3=8.19瑙ｉ姝ラ锛7x/3=8.19 7x=8.19*3 7x=24.57 x=24.57/7 x=3.51 4銆5x-39=56瑙ｉ姝ラ锛5x-39=56 5x=56+39 5x=95 x=9...
绛旓細鍥炵瓟锛氱涓涓槸19
