69+7(x-1)=90

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Solution for 69+7(x-1)=90 equation: 



69+7(x-1)=90

We move all terms to the left:

69+7(x-1)-(90)=0

We add all the numbers together, and all the variables

7(x-1)-21=0

We multiply parentheses

7x-7-21=0

We add all the numbers together, and all the variables

7x-28=0

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

7x=28

x=28/7

x=4

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