4(12-x)=15-x

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Solution for 4(12-x)=15-x equation: 



4(12-x)=15-x

We move all terms to the left:

4(12-x)-(15-x)=0

We add all the numbers together, and all the variables

4(-1x+12)-(-1x+15)=0

We multiply parentheses

-4x-(-1x+15)+48=0

We get rid of parentheses

-4x+1x-15+48=0

We add all the numbers together, and all the variables

-3x+33=0

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

-3x=-33

x=-33/-3

x=+11

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