Solve for x
x=-3
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2x+6=0
Divide both sides by -7. Zero divided by any non-zero number gives zero.
2x=-6
Subtract 6 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-6}{2}
Divide both sides by 2.
x=-3
Divide -6 by 2 to get -3.
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Limits
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