Solve for x
x=0
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12x=-4+4
Add 4 to both sides.
12x=0
Add -4 and 4 to get 0.
x=0
Product of two numbers is equal to 0 if at least one of them is 0. Since 12 is not equal to 0, x must be equal to 0.
Examples
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Matrix
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Limits
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