6x+7x-72=90-5x

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Solution for 6x+7x-72=90-5x equation: 



6x+7x-72=90-5x

We move all terms to the left:

6x+7x-72-(90-5x)=0

We add all the numbers together, and all the variables

6x+7x-(-5x+90)-72=0

We add all the numbers together, and all the variables

13x-(-5x+90)-72=0

We get rid of parentheses

13x+5x-90-72=0

We add all the numbers together, and all the variables

18x-162=0

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

18x=162

x=162/18

x=9

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