2(x-12)-3(4x-7)=9解答

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2(x-12)-3(4x-7)=9解答2(x-12)-3(4x-7)=9解答2(x-12)-3(4x-7)=9解答2(x-12)-3(4x-7)=92x-24-12x+21=910x=-12x=-1.

2(x-12)-3(4x-7)=9解答
2(x-12)-3(4x-7)=9解答

2(x-12)-3(4x-7)=9解答
2(x-12)-3(4x-7)=9
2x-24-12x+21=9
10x=-12
x=-1.2

2(x-12)-3(4x-7)=9
2x-24-12x+21=9
10x=-12
x=-1.2

-1.2

负五分之六


2(x-12)-3(4x-7)=9
2x-24-12x+21=9
10x=-12
x=-1.2

2(x-12)-3(4x-7)=9 解2x-24-12x+21=9 2x-12x-24+21 =9
-10x-3 =9
-10x =9+3
-10x=12
...

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2(x-12)-3(4x-7)=9 解2x-24-12x+21=9 2x-12x-24+21 =9
-10x-3 =9
-10x =9+3
-10x=12
x=12÷(-10)
x=12×负十分之一
x=负五分之六
抱歉,数字打不出来

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