42-3(x)=12

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Solution for 42-3(x)=12 equation: 



42-3(x)=12

We move all terms to the left:

42-3(x)-(12)=0

We add all the numbers together, and all the variables

-3x+30=0

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

-3x=-30

x=-30/-3

x=+10

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