4x-30=20-x

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Solution for 4x-30=20-x equation: 



4x-30=20-x

We move all terms to the left:

4x-30-(20-x)=0

We add all the numbers together, and all the variables

4x-(-1x+20)-30=0

We get rid of parentheses

4x+1x-20-30=0

We add all the numbers together, and all the variables

5x-50=0

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

5x=50

x=50/5

x=10

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