7x+3=-x+91

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Solution for 7x+3=-x+91 equation: 



7x+3=-x+91

We move all terms to the left:

7x+3-(-x+91)=0

We add all the numbers together, and all the variables

7x-(-1x+91)+3=0

We get rid of parentheses

7x+1x-91+3=0

We add all the numbers together, and all the variables

8x-88=0

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

8x=88

x=88/8

x=11

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