Solve for x
x=0
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82x-x=0
Subtract x from both sides.
81x=0
Combine 82x and -x to get 81x.
x=0
Product of two numbers is equal to 0 if at least one of them is 0. Since 81 is not equal to 0, x must be equal to 0.
Examples
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Matrix
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Simultaneous equation
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Limits
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