7+(x-3y)/4=2x-(y+5)/3,[10(x-y)-4(1-x)]/3=y帮解一下啊!

学习时间:2026-04-07 17:29:15 阅读：2683

7+(x-3y)/4=2x-(y+5)/3,[10(x-y)-4(1-x)]/3=y帮解一下啊!7+(x-3y)/4=2x-(y+5)/3,[10(x-y)-4(1-x)]/3=y

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2026-04-07 17:29:15

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7+(x-3y)/4=2x-(y+5)/3[10(x-y)-4(1-x)]/3=y去分母7*12+3(x-3y)=12*2x-4(y+5)10(x-y)-4(1-x)=3y整理得：21x+5y=10414x-13y=4①*2 ②*3得42x+10y=20842x-39y=12解得 y=4 x=4③④⑤

7+(x-3y)/4=2x-(y+5)/3,[10(x-y)-4(1-x)]/3=y帮解一下啊!

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