-12=3(r+8)

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Solution for -12=3(r+8) equation:


Simplifying
-12 = 3(r + 8)

Reorder the terms:
-12 = 3(8 + r)
-12 = (8 * 3 + r * 3)
-12 = (24 + 3r)

Solving
-12 = 24 + 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.
-12 + -3r = 24 + 3r + -3r

Combine like terms: 3r + -3r = 0
-12 + -3r = 24 + 0
-12 + -3r = 24

Add '12' to each side of the equation.
-12 + 12 + -3r = 24 + 12

Combine like terms: -12 + 12 = 0
0 + -3r = 24 + 12
-3r = 24 + 12

Combine like terms: 24 + 12 = 36
-3r = 36

Divide each side by '-3'.
r = -12

Simplifying
r = -12

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