15+x=-15-9x

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Solution for 15+x=-15-9x equation:



15+x=-15-9x
We move all terms to the left:
15+x-(-15-9x)=0
We add all the numbers together, and all the variables
x-(-9x-15)+15=0
We get rid of parentheses
x+9x+15+15=0
We add all the numbers together, and all the variables
10x+30=0
We move all terms containing x to the left, all other terms to the right
10x=-30
x=-30/10
x=-3

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