Solve for x
x=-12
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0=x+12
Variable x cannot be equal to 3 since division by zero is not defined. Multiply both sides of the equation by x-3.
x+12=0
Swap sides so that all variable terms are on the left hand side.
x=-12
Subtract 12 from both sides. Anything subtracted from zero gives its negation.
Examples
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Matrix
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Simultaneous equation
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Integration
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Limits
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