78+(3x-3)=90

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Solution for 78+(3x-3)=90 equation: 



78+(3x-3)=90

We move all terms to the left:

78+(3x-3)-(90)=0

We add all the numbers together, and all the variables

(3x-3)-12=0

We get rid of parentheses

3x-3-12=0

We add all the numbers together, and all the variables

3x-15=0

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

3x=15

x=15/3

x=5

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