4.2x-9=3(1.5+x)

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Solution for 4.2x-9=3(1.5+x) equation: 



4.2x-9=3(1.5+x)

We move all terms to the left:

4.2x-9-(3(1.5+x))=0

We add all the numbers together, and all the variables

4.2x-(3(x+1.5))-9=0



We calculate terms in parentheses: -(3(x+1.5)), so:

3(x+1.5)

We multiply parentheses

3x+4.5

Back to the equation:

-(3x+4.5)



We get rid of parentheses

4.2x-3x-4.5-9=0

We add all the numbers together, and all the variables

1.2x-13.5=0

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

1.2x=13.5

x=13.5/1.2

x=11+0.3/1.2

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