3x+(x-10)=130

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Solution for 3x+(x-10)=130 equation: 



3x+(x-10)=130

We move all terms to the left:

3x+(x-10)-(130)=0

We get rid of parentheses

3x+x-10-130=0

We add all the numbers together, and all the variables

4x-140=0

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

4x=140

x=140/4

x=35

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