7x+21=-12

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Solution for 7x+21=-12 equation:



7x+21=-12
We move all terms to the left:
7x+21-(-12)=0
We add all the numbers together, and all the variables
7x+33=0
We move all terms containing x to the left, all other terms to the right
7x=-33
x=-33/7
x=-4+5/7

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