Solve for f
f=6
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4\times 3=2f
Multiply both sides by 3.
12=2f
Multiply 4 and 3 to get 12.
2f=12
Swap sides so that all variable terms are on the left hand side.
f=\frac{12}{2}
Divide both sides by 2.
f=6
Divide 12 by 2 to get 6.
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