12=x(-3)

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Solution for 12=x(-3) equation:



12=x(-3)
We move all terms to the left:
12-(x(-3))=0
We calculate terms in parentheses: -(x(-3)), so:
x(-3)
We multiply parentheses
-3x
Back to the equation:
-(-3x)
We get rid of parentheses
3x+12=0
We move all terms containing x to the left, all other terms to the right
3x=-12
x=-12/3
x=-4

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