1/c =1

Solution

\frac{1}{c} = 1

c = 1

Solution steps

\frac{1}{c} = 1

Multiply both sides by

c

1 = c

Switch sides

c = 1

Verify Solutions

Find undefined (singularity) points:

c = 0

Combine undefined points with solutions:

c = 1

x + \frac{1}{x} = 80

\frac{11}{3} = \frac{12}{u}

2 x^{2} + 1 = \frac{1}{( x ^{2} ) - 4}

\frac{1}{x + 1} + 3 = \frac{13}{x + 1}

\frac{1}{x - 5} + 3 = \frac{5 x}{x - 5}