-4=3r+20

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Solution for -4=3r+20 equation:


Simplifying
-4 = 3r + 20

Reorder the terms:
-4 = 20 + 3r

Solving
-4 = 20 + 3r

Solving for variable 'r'.

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

Add '-3r' to each side of the equation.
-4 + -3r = 20 + 3r + -3r

Combine like terms: 3r + -3r = 0
-4 + -3r = 20 + 0
-4 + -3r = 20

Add '4' to each side of the equation.
-4 + 4 + -3r = 20 + 4

Combine like terms: -4 + 4 = 0
0 + -3r = 20 + 4
-3r = 20 + 4

Combine like terms: 20 + 4 = 24
-3r = 24

Divide each side by '-3'.
r = -8

Simplifying
r = -8

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