Solve for f
f=-145
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-29\times 105=21f
Multiply both sides of the equation by 1218, the least common multiple of -42,58.
-3045=21f
Multiply -29 and 105 to get -3045.
21f=-3045
Swap sides so that all variable terms are on the left hand side.
f=\frac{-3045}{21}
Divide both sides by 21.
f=-145
Divide -3045 by 21 to get -145.
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