7x-11+x+12=89

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Solution for 7x-11+x+12=89 equation: 



7x-11+x+12=89

We move all terms to the left:

7x-11+x+12-(89)=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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