2x+4+7x+5=90

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Solution for 2x+4+7x+5=90 equation: 



2x+4+7x+5=90

We move all terms to the left:

2x+4+7x+5-(90)=0

We add all the numbers together, and all the variables

9x-81=0

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

9x=81

x=81/9

x=9

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