3x+18+x+6=7x-15

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Solution for 3x+18+x+6=7x-15 equation: 



3x+18+x+6=7x-15

We move all terms to the left:

3x+18+x+6-(7x-15)=0

We add all the numbers together, and all the variables

4x-(7x-15)+24=0

We get rid of parentheses

4x-7x+15+24=0

We add all the numbers together, and all the variables

-3x+39=0

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

-3x=-39

x=-39/-3

x=+13

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