(12x-3+7x-2)=90

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Solution for (12x-3+7x-2)=90 equation: 



(12x-3+7x-2)=90

We move all terms to the left:

(12x-3+7x-2)-(90)=0

We add all the numbers together, and all the variables

(19x-5)-90=0

We get rid of parentheses

19x-5-90=0

We add all the numbers together, and all the variables

19x-95=0

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

19x=95

x=95/19

x=5

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