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

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



5x+15=-7(x+3)
We move all terms to the left:
5x+15-(-7(x+3))=0
We calculate terms in parentheses: -(-7(x+3)), so:
-7(x+3)
We multiply parentheses
-7x-21
Back to the equation:
-(-7x-21)
We get rid of parentheses
5x+7x+21+15=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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