-12r-16+4r+12=-21+11

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Solution for -12r-16+4r+12=-21+11 equation:


Simplifying
-12r + -16 + 4r + 12 = -21 + 11

Reorder the terms:
-16 + 12 + -12r + 4r = -21 + 11

Combine like terms: -16 + 12 = -4
-4 + -12r + 4r = -21 + 11

Combine like terms: -12r + 4r = -8r
-4 + -8r = -21 + 11

Combine like terms: -21 + 11 = -10
-4 + -8r = -10

Solving
-4 + -8r = -10

Solving for variable 'r'.

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

Add '4' to each side of the equation.
-4 + 4 + -8r = -10 + 4

Combine like terms: -4 + 4 = 0
0 + -8r = -10 + 4
-8r = -10 + 4

Combine like terms: -10 + 4 = -6
-8r = -6

Divide each side by '-8'.
r = 0.75

Simplifying
r = 0.75

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