-12=r+4

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Solution for -12=r+4 equation:


Simplifying
-12 = r + 4

Reorder the terms:
-12 = 4 + r

Solving
-12 = 4 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
-12 + -1r = 4 + r + -1r

Combine like terms: r + -1r = 0
-12 + -1r = 4 + 0
-12 + -1r = 4

Add '12' to each side of the equation.
-12 + 12 + -1r = 4 + 12

Combine like terms: -12 + 12 = 0
0 + -1r = 4 + 12
-1r = 4 + 12

Combine like terms: 4 + 12 = 16
-1r = 16

Divide each side by '-1'.
r = -16

Simplifying
r = -16

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