Solve for x_3
x_{3}=0
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2x_{3}=0
Multiply 0 and 1 to get 0.
x_{3}=0
Product of two numbers is equal to 0 if at least one of them is 0. Since 2 is not equal to 0, x_{3} must be equal to 0.
Examples
Quadratic equation
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Matrix
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Limits
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