3x+10=4x-15=12

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Solution for 3x+10=4x-15=12 equation: 



3x+10=4x-15=12

We move all terms to the left:

3x+10-(4x-15)=0

We get rid of parentheses

3x-4x+15+10=0

We add all the numbers together, and all the variables

-1x+25=0

We move all terms containing x to the left, all other terms to the right

-x=-25

x=-25/-1

x=+25

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