Solve for c
c=27
Quiz
Linear Equation
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\frac { 1 } { 18 } = \frac { 1 } { c } + \frac { 1 } { 54 }
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3c=54+54c\times \frac{1}{54}
Variable c cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 54c, the least common multiple of 18,c,54.
3c=54+c
Cancel out 54 and 54.
3c-c=54
Subtract c from both sides.
2c=54
Combine 3c and -c to get 2c.
c=\frac{54}{2}
Divide both sides by 2.
c=27
Divide 54 by 2 to get 27.
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