12+-12+7x=5+-12

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Solution for 12+-12+7x=5+-12 equation: 



12+-12+7x=5+-12

We move all terms to the left:

12+-12+7x-(5+-12)=0

We add all the numbers together, and all the variables

7x+12-12+-(-7)=0

We add all the numbers together, and all the variables

7x+7=0

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

7x=-7

x=-7/7

x=-1

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