3=-6/d

Solution

3 = - \frac{6}{d}

d = - 2

Solution steps

3 = - \frac{6}{d}

Multiply both sides by

d

3 d = - 6

Divide both sides by

3

d = - 2

Verify Solutions

Find undefined (singularity) points:

d = 0

Combine undefined points with solutions:

d = - 2

50 = \frac{1}{x}

\frac{4}{x} + \frac{3 x}{x - 2} = 3

\frac{3}{x + 3} + 5 = \frac{23}{x + 3}

\frac{24}{100} = \frac{30}{x}

0.4 = \frac{20}{x}