Solve for c
c=3
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\frac{3.9}{0.78}=c+2
Divide both sides by 0.78.
\frac{390}{78}=c+2
Expand \frac{3.9}{0.78} by multiplying both numerator and the denominator by 100.
5=c+2
Divide 390 by 78 to get 5.
c+2=5
Swap sides so that all variable terms are on the left hand side.
c=5-2
Subtract 2 from both sides.
c=3
Subtract 2 from 5 to get 3.
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Limits
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