4x-(-x-5)=20

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Solution for 4x-(-x-5)=20 equation: 



4x-(-x-5)=20

We move all terms to the left:

4x-(-x-5)-(20)=0

We add all the numbers together, and all the variables

4x-(-1x-5)-20=0

We get rid of parentheses

4x+1x+5-20=0

We add all the numbers together, and all the variables

5x-15=0

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

5x=15

x=15/5

x=3

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