9r-3=-15+7r

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Solution for 9r-3=-15+7r equation:


Simplifying
9r + -3 = -15 + 7r

Reorder the terms:
-3 + 9r = -15 + 7r

Solving
-3 + 9r = -15 + 7r

Solving for variable 'r'.

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

Add '-7r' to each side of the equation.
-3 + 9r + -7r = -15 + 7r + -7r

Combine like terms: 9r + -7r = 2r
-3 + 2r = -15 + 7r + -7r

Combine like terms: 7r + -7r = 0
-3 + 2r = -15 + 0
-3 + 2r = -15

Add '3' to each side of the equation.
-3 + 3 + 2r = -15 + 3

Combine like terms: -3 + 3 = 0
0 + 2r = -15 + 3
2r = -15 + 3

Combine like terms: -15 + 3 = -12
2r = -12

Divide each side by '2'.
r = -6

Simplifying
r = -6

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