1.7X+2.5X=12.6 解方程

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1.7X+2.5X=12.6 解方程
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1.7X+2.5X=12.6 解方程
1.7X+2.5X=12.6 解方程

1.7X+2.5X=12.6 解方程
1.7X+2.5X=12.6
4.2x=12.6
x=3

4.2X=12.6
X=12.6除以4.2
X=3
采纳吧

1.7X+2.5X=12.6
(1.7+2.5)X=12.6
4.2X=12.6
X=12.6÷4.2
X=3

1.7X+2.5X=12.6
4.2x=12.6
x=12.6/4.2
x=3

1.7X+2.5X=12.6
4.2x=12.6
x=3

4.2x=12.6
x=3

1.7X+2.5X=12.6
4.2x=12.6
x=3

4.2x=12.6
两边同时除以4.2
x=3

X=3