15x-9+3x=-63

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Solution for 15x-9+3x=-63 equation: 



15x-9+3x=-63

We move all terms to the left:

15x-9+3x-(-63)=0

We add all the numbers together, and all the variables

18x+54=0

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

18x=-54

x=-54/18

x=-3

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