一块长方形布,周长是16米,长比宽多2米,这块布的长是 一个长方形的花坛周长是16米,长比宽多2米,求它的长和宽分别...
\u4e00\u5757\u957f\u65b9\u5f62\u5e03\uff0c\u5468\u957f16\u7c73\uff0c\u957f\u6bd4\u5bbd\u591a2\u7c73\uff0c\u8fd9\u5757\u5e03\u957f\u51e0\u7c73\uff1f\u5bbd\u51e0\u7c73\uff1f\u6c42\u89e3\u7b54\u89e3\uff1a
\u957f\u4e0e\u5bbd\u7684\u548c\u662f16\u00f72=8\u7c73
\u957f\uff088+2\uff09\u00f72=5\u7c73
\u5bbd5-2=3\u7c73
\u7b54\uff1a\u957f5\u7c73\uff0c\u5bbd3\u7c73 \u3002
---------------------
\u5982\u679c\u4f60\u8ba4\u53ef\u6211\u7684\u56de\u7b54\uff0c\u656c\u8bf7\u53ca\u65f6\u91c7\u7eb3\uff01
\u8bf7\u5728\u53f3\u4e0a\u89d2\u70b9\u51fb\u201c\u8bc4\u4ef7\u201d\uff0c\u7136\u540e\u5c31\u53ef\u4ee5\u9009\u62e9\u201c\u6ee1\u610f\uff0c\u95ee\u9898\u5df2\u7ecf\u5b8c\u7f8e\u89e3\u51b3\u201d\u4e86\uff01\uff01
\u795d\u5b66\u4e60\u8fdb\u6b65\uff01\uff01\uff01
\u957f\u4e0e\u5bbd\u7684\u548c\u662f\uff1a16\u00f72=8\u7c73
\u5bbd\u662f\uff1a\uff088-2\uff09\u00f72=3\u7c73
\u957f\u662f\uff1a3+2=5\u7c73
\u65b9\u7a0b\uff1a
\u89e3\uff1a\u8bbe\u5bbd\u662fX\u7c73\uff0c\u90a3\u4e48\u957f\u662f\uff08X+2\uff09\u7c73
2\uff08X+2+X\uff09=16
2X+2=16\u00f72
2X+2=8
2X=8-2
X=6/2
X=3
\u90a3\u4e48\uff0c\u957f\u662f\uff1a3+2=5\u7c73
\u00f7
绛旓細16梅2=8m 鎵浠ヨ繖涓涓璐ㄦ暟涓鐪嬪氨鐭ラ亾鏄細3銆5 鎵浠ラ潰绉疭=3脳5=15骞虫柟绫
绛旓細瀹芥槸涓夌背
绛旓細16梅2锛8鍥犱负鏄川鏁版墍浠ョ鍚堥鎰忕殑鏈 1+7=8 3+5=8 1*7=7 3*5=15 鎵浠ラ潰绉瓑浜7鎴15
绛旓細闀挎瘮瀹藉2绫,鍛ㄩ暱-2-2=4鍊嶇殑瀹斤紝瀹=(16-2-2)梅4=3锛堢背锛夐暱=3+2=5锛堢背锛
绛旓細瑙o細棣栧厛鍒嗘瀽棰樺共鍙煡鑰冪偣涓哄嚑浣曞浘褰㈢殑闈㈢Н鐨勫彉褰紒鍒欐牴鎹鎰忓彲鏈夛細璁撅細闀挎柟褰鐨勮竟鍒嗗埆涓簒鍜寉 鍒欐湁锛2*锛坸+y锛=16 寰楋細x+y=8锛堜笖x鍜寉闂垜璐ㄦ暟锛夊垎鏋愬彲鐭ユ弧瓒崇殑鏈夛細x=3锛泍=5锛堝洜涓烘渶灏忕殑璐ㄦ暟涓2锛屾墍浠ヤ笉鑰冭檻1鍜7锛夋墍浠ワ細闈㈢НS=3*5=15锛堝钩鏂圭背锛...
绛旓細鍒楀紡璁$畻涓 16梅2-5=3绫 鎵浠ヨ彍鍦扮殑瀹藉害涓3绫.
绛旓細16梅2-6 =8-6 =2绫
绛旓細闀匡紜瀹斤紳16梅2=8锛堢背锛夊锛8梅(4+1)=1.6锛堢背锛夐暱锛1.6脳4=6.4锛堢背锛夌瓟锛氬鏄1.6绫筹紝闀鏄6.4绫 銆
绛旓細闀+瀹=16梅2=8m 8=1+7=2+6=3+5=4+4 1銆6銆4閮戒笉鏄川鏁帮紝鎵浠闀挎柟褰鐨勯暱涓5锛屽涓3銆係 =ab=3脳5=15銕 绛:鑿滃湴闈㈢Н鏄15銕°
绛旓細zhxya2007锛屼綘濂斤細闀垮鐨勫拰鏄細16梅2锛8锛堝帢绫筹級闀挎柟褰㈠鏄細锛8锛2锛壝2锛3锛堝帢绫筹級闀挎柟褰㈤暱鏄細3锛2锛5锛堝帢绫筹級