(4x+7)+(2x-1)=90

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Solution for (4x+7)+(2x-1)=90 equation: 



(4x+7)+(2x-1)=90

We move all terms to the left:

(4x+7)+(2x-1)-(90)=0

We get rid of parentheses

4x+2x+7-1-90=0

We add all the numbers together, and all the variables

6x-84=0

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

6x=84

x=84/6

x=14

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