5x-12+7=-3(-x-5)

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Solution for 5x-12+7=-3(-x-5) equation: 



5x-12+7=-3(-x-5)

We move all terms to the left:

5x-12+7-(-3(-x-5))=0

We add all the numbers together, and all the variables

5x-(-3(-1x-5))-12+7=0

We add all the numbers together, and all the variables

5x-(-3(-1x-5))-5=0



We calculate terms in parentheses: -(-3(-1x-5)), so:

-3(-1x-5)

We multiply parentheses

3x+15

Back to the equation:

-(3x+15)



We get rid of parentheses

5x-3x-15-5=0

We add all the numbers together, and all the variables

2x-20=0

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

2x=20

x=20/2

x=10

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