20=-5(r+3)

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Solution for 20=-5(r+3) equation:


Simplifying
20 = -5(r + 3)

Reorder the terms:
20 = -5(3 + r)
20 = (3 * -5 + r * -5)
20 = (-15 + -5r)

Solving
20 = -15 + -5r

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '5r' to each side of the equation.
20 + 5r = -15 + -5r + 5r

Combine like terms: -5r + 5r = 0
20 + 5r = -15 + 0
20 + 5r = -15

Add '-20' to each side of the equation.
20 + -20 + 5r = -15 + -20

Combine like terms: 20 + -20 = 0
0 + 5r = -15 + -20
5r = -15 + -20

Combine like terms: -15 + -20 = -35
5r = -35

Divide each side by '5'.
r = -7

Simplifying
r = -7

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