What is the answer to 7/(14-d)= 3/(18+d) ?

The answer to 7/(14-d)= 3/(18+d) is d=-42/5

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7/(14-d)= 3/(18+d)

\frac{7}{14 - d} = \frac{3}{18 + d}

d = - \frac{42}{5}

Decimal Notation

d = - 8.4

Solution steps

\frac{7}{14 - d} = \frac{3}{18 + d}

Cross multiply

126 + 7 d = 42 - 3 d

Move

126

to the right side

7 d = - 3 d - 84

Move

3 d

to the left side

10 d = - 84

Divide both sides by

10

d = - \frac{42}{5}

Verify Solutions

Find undefined (singularity) points:

d = 14, d = - 18

Combine undefined points with solutions:

d = - \frac{42}{5}

\frac{2}{3} = \frac{12}{x}

\frac{2.6}{7.8} = \frac{3}{x}

\frac{5}{2 x + 3} - \frac{1}{x - 6} = 0

\frac{2 x + 2}{3 x + 1} = \frac{4}{5}

\frac{5}{n} - 1 = 6

What is the answer to 7/(14-d)= 3/(18+d) ?
The answer to 7/(14-d)= 3/(18+d) is d=-42/5
Solve for d: 7/(14-d)= 3/(18+d)
The solution is d=-42/5