4x-20=x+70

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Solution for 4x-20=x+70 equation: 



4x-20=x+70

We move all terms to the left:

4x-20-(x+70)=0

We get rid of parentheses

4x-x-70-20=0

We add all the numbers together, and all the variables

3x-90=0

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

3x=90

x=90/3

x=30

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