8r+7=-9

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Solution for 8r+7=-9 equation: 


Simplifying
8r + 7 = -9

Reorder the terms:
7 + 8r = -9

Solving
7 + 8r = -9

Solving for variable 'r'.

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

Add '-7' to each side of the equation.
7 + -7 + 8r = -9 + -7

Combine like terms: 7 + -7 = 0
0 + 8r = -9 + -7
8r = -9 + -7

Combine like terms: -9 + -7 = -16
8r = -16

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

Simplifying
r = -2

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