21-9x=(-6)

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Solution for 21-9x=(-6) equation:



21-9x=(-6)
We move all terms to the left:
21-9x-((-6))=0
We add all the numbers together, and all the variables
-9x+27=0
We move all terms containing x to the left, all other terms to the right
-9x=-27
x=-27/-9
x=+3

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