7(3-x)=5x-15

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Solution for 7(3-x)=5x-15 equation: 



7(3-x)=5x-15

We move all terms to the left:

7(3-x)-(5x-15)=0

We add all the numbers together, and all the variables

7(-1x+3)-(5x-15)=0

We multiply parentheses

-7x-(5x-15)+21=0

We get rid of parentheses

-7x-5x+15+21=0

We add all the numbers together, and all the variables

-12x+36=0

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

-12x=-36

x=-36/-12

x=+3

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