x+13+x+12=15

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Solution for x+13+x+12=15 equation: 



x+13+x+12=15

We move all terms to the left:

x+13+x+12-(15)=0

We add all the numbers together, and all the variables

2x+10=0

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

2x=-10

x=-10/2

x=-5

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