3+-1x=-4

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Solution for 3+-1x=-4 equation:



3+-1x=-4
We move all terms to the left:
3+-1x-(-4)=0
We add all the numbers together, and all the variables
-1x+7=0
We move all terms containing x to the left, all other terms to the right
-x=-7
x=-7/-1
x=+7

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