2r+8=-7

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Solution for 2r+8=-7 equation: 


Simplifying
2r + 8 = -7

Reorder the terms:
8 + 2r = -7

Solving
8 + 2r = -7

Solving for variable 'r'.

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

Add '-8' to each side of the equation.
8 + -8 + 2r = -7 + -8

Combine like terms: 8 + -8 = 0
0 + 2r = -7 + -8
2r = -7 + -8

Combine like terms: -7 + -8 = -15
2r = -15

Divide each side by '2'.
r = -7.5

Simplifying
r = -7.5

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