-9r+7+5=15

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Solution for -9r+7+5=15 equation:


Simplifying
-9r + 7 + 5 = 15

Reorder the terms:
7 + 5 + -9r = 15

Combine like terms: 7 + 5 = 12
12 + -9r = 15

Solving
12 + -9r = 15

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 + -9r = 15 + -12

Combine like terms: 12 + -12 = 0
0 + -9r = 15 + -12
-9r = 15 + -12

Combine like terms: 15 + -12 = 3
-9r = 3

Divide each side by '-9'.
r = -0.3333333333

Simplifying
r = -0.3333333333

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