What is the answer to 5/y+4/y =3 ?

The answer to 5/y+4/y =3 is y=3

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5/y+4/y =3

\frac{5}{y} + \frac{4}{y} = 3

y = 3

Solution steps

\frac{5}{y} + \frac{4}{y} = 3

Multiply both sides by

y

9 = 3 y

Switch sides

3 y = 9

Divide both sides by

3

y = 3

Verify Solutions

Find undefined (singularity) points:

y = 0

Combine undefined points with solutions:

y = 3

\frac{5}{6} = \frac{13}{s + 7.5}

\frac{51}{d} = \frac{17}{2.1}

\frac{3}{x} - 2 = \frac{1}{x}

- 4 = \frac{1}{\frac{1}{4} + c}

\frac{x + 8}{x - 8} = 16