Solve for x
x=28
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x\times 6=8\times 21
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 8x, the least common multiple of 8,x.
x\times 6=168
Multiply 8 and 21 to get 168.
x=\frac{168}{6}
Divide both sides by 6.
x=28
Divide 168 by 6 to get 28.
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