Solve for x
x=56
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\frac{x}{7}=\frac{8}{21}\times 21
Multiply both sides by 21.
3x=8\times 21
Multiply both sides of the equation by 21, the least common multiple of 7,21.
3x=168
Multiply 8 and 21 to get 168.
x=\frac{168}{3}
Divide both sides by 3.
x=56
Divide 168 by 3 to get 56.
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