Solve for c
c=24
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5c=4\times 30
Multiply both sides of the equation by 40, the least common multiple of 8,10.
5c=120
Multiply 4 and 30 to get 120.
c=\frac{120}{5}
Divide both sides by 5.
c=24
Divide 120 by 5 to get 24.
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