-5r-12=9-8

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Solution for -5r-12=9-8 equation:


Simplifying
-5r + -12 = 9 + -8

Reorder the terms:
-12 + -5r = 9 + -8

Combine like terms: 9 + -8 = 1
-12 + -5r = 1

Solving
-12 + -5r = 1

Solving for variable 'r'.

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

Add '12' to each side of the equation.
-12 + 12 + -5r = 1 + 12

Combine like terms: -12 + 12 = 0
0 + -5r = 1 + 12
-5r = 1 + 12

Combine like terms: 1 + 12 = 13
-5r = 13

Divide each side by '-5'.
r = -2.6

Simplifying
r = -2.6

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