4x-3×9=29

4x\uff0d3 \u00d79 = 29

4x\uff0d3 \u00d79 = 29
4x-27=29
4x=29+27
4x=56
x=56\u00f74
x=14

4x-3\u00d79\uff1d29
4x-27=29
4x=29+27
4x=56
x=56\u00f74
x=14

4x-27=29
4x=29+27
4x=56
x=14

4X=29+27
X=14

4x=29+3X(九分之一)
结果是九分之八
好像是

'4x=56
x=14

4X＝56
X＝14

x=|4

975鑴0.25 9 3/4鑴76-9.75
绛旓細975x0.25+9 鍙3/4x76-9.75 =9.75x100x0.25+9.75x76-9.75 =9.75x锛100x0.25+76-1)=9.75x锛25+75锛=9.75x100 =975 璋㈣阿锛岃閲囩撼

5a-3b-8 5b-3a
绛旓細4X^3+6X^2-3=0 4x^3+6x^2-2=0 2x^3+3x^2-1=0 (2x^2+2x^2)+(x^2-1)=0 2x^2(x+1)+(x+1)(x-1)=0 (x+1)(2x^2+x-1)=0 (x+1)(2x-1)(x+1)=0 鏈変袱涓В x=-1,x=1/2 (-1/3)^102鑴(-1/3)^108 (-1/3)^102 脳 (-1/3)^108 =...

瑙ｆ柟绋嬬粍4X+5y=98 5X-4y=2
绛旓細4X+5y=98 1寮 5X-4y=2 2寮 灏2寮-1寮 X-9Y=-96 3寮 灏3寮 X=9Y-96 4寮 灏4寮忎唬鍏1寮 姹傚緱Y=482/41 鐒跺悗姹傚嚭X锛屽嵆鍙

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