42+x=3(x+8)

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Solution for 42+x=3(x+8) equation: 



42+x=3(x+8)

We move all terms to the left:

42+x-(3(x+8))=0



We calculate terms in parentheses: -(3(x+8)), so:

3(x+8)

We multiply parentheses

3x+24

Back to the equation:

-(3x+24)



We get rid of parentheses

x-3x-24+42=0

We add all the numbers together, and all the variables

-2x+18=0

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

-2x=-18

x=-18/-2

x=+9

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