90=3x+3(3x-14)

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Solution for 90=3x+3(3x-14) equation: 



90=3x+3(3x-14)

We move all terms to the left:

90-(3x+3(3x-14))=0



We calculate terms in parentheses: -(3x+3(3x-14)), so:

3x+3(3x-14)

We multiply parentheses

3x+9x-42

We add all the numbers together, and all the variables

12x-42

Back to the equation:

-(12x-42)



We get rid of parentheses

-12x+42+90=0

We add all the numbers together, and all the variables

-12x+132=0

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

-12x=-132

x=-132/-12

x=+11

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