2(.7x+10)+2(.4x+5)=90

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Solution for 2(.7x+10)+2(.4x+5)=90 equation: 



2(.7x+10)+2(.4x+5)=90

We move all terms to the left:

2(.7x+10)+2(.4x+5)-(90)=0

We multiply parentheses

2x+2x+20+10-90=0

We add all the numbers together, and all the variables

4x-60=0

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

4x=60

x=60/4

x=15

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