13x+21x-7=-63

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Solution for 13x+21x-7=-63 equation: 



13x+21x-7=-63

We move all terms to the left:

13x+21x-7-(-63)=0

We add all the numbers together, and all the variables

34x+56=0

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

34x=-56

x=-56/34

x=-1+11/17

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