5x+(3x+12)=90

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Solution for 5x+(3x+12)=90 equation: 



5x+(3x+12)=90

We move all terms to the left:

5x+(3x+12)-(90)=0

We get rid of parentheses

5x+3x+12-90=0

We add all the numbers together, and all the variables

8x-78=0

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

8x=78

x=78/8

x=9+3/4

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