3x-(4x-20)=-15

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Solution for 3x-(4x-20)=-15 equation: 



3x-(4x-20)=-15

We move all terms to the left:

3x-(4x-20)-(-15)=0

We add all the numbers together, and all the variables

3x-(4x-20)+15=0

We get rid of parentheses

3x-4x+20+15=0

We add all the numbers together, and all the variables

-1x+35=0

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

-x=-35

x=-35/-1

x=+35

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