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(3x+38)+(5x)=90
We move all terms to the left:
(3x+38)+(5x)-(90)=0
We add all the numbers together, and all the variables
5x+(3x+38)-90=0
We get rid of parentheses
5x+3x+38-90=0
We add all the numbers together, and all the variables
8x-52=0
We move all terms containing x to the left, all other terms to the right
8x=52
x=52/8
x=6+1/2
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