3x+(5x-12)=90

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



3x+(5x-12)=90

We move all terms to the left:

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

We get rid of parentheses

3x+5x-12-90=0

We add all the numbers together, and all the variables

8x-102=0

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

8x=102

x=102/8

x=12+3/4

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