4x-9=3(1.2x+4)

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Solution for 4x-9=3(1.2x+4) equation: 



4x-9=3(1.2x+4)

We move all terms to the left:

4x-9-(3(1.2x+4))=0



We calculate terms in parentheses: -(3(1.2x+4)), so:

3(1.2x+4)

We multiply parentheses

3x+12

Back to the equation:

-(3x+12)



We get rid of parentheses

4x-3x-12-9=0

We add all the numbers together, and all the variables

x-21=0

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

x=21

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