7x+5=-8+5x+21

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Solution for 7x+5=-8+5x+21 equation: 



7x+5=-8+5x+21

We move all terms to the left:

7x+5-(-8+5x+21)=0

We add all the numbers together, and all the variables

7x-(5x+13)+5=0

We get rid of parentheses

7x-5x-13+5=0

We add all the numbers together, and all the variables

2x-8=0

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

2x=8

x=8/2

x=4

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