What is the answer to -4= r/(20)-5 ?

The answer to -4= r/(20)-5 is r=20

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-4= r/(20)-5

- 4 = \frac{r}{20} - 5

r = 20

Solution steps

- 4 = \frac{r}{20} - 5

Switch sides

\frac{r}{20} - 5 = - 4

Move

5

to the right side

\frac{r}{20} = 1

Multiply both sides by

20

r = 20

11 x^{2} - 21 x - 2

\frac{x}{2} + \frac{3 x}{8} > 2

b^{2} + 6 b = 16

7 x - 14 = 2 x + 11

- 4.5 = - 0.5 (x - 7.1)