-2r+9=-7

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Solution for -2r+9=-7 equation: 


Simplifying
-2r + 9 = -7

Reorder the terms:
9 + -2r = -7

Solving
9 + -2r = -7

Solving for variable 'r'.

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

Add '-9' to each side of the equation.
9 + -9 + -2r = -7 + -9

Combine like terms: 9 + -9 = 0
0 + -2r = -7 + -9
-2r = -7 + -9

Combine like terms: -7 + -9 = -16
-2r = -16

Divide each side by '-2'.
r = 8

Simplifying
r = 8

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