-2+r-7=-8

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Solution for -2+r-7=-8 equation: 


Simplifying
-2 + r + -7 = -8

Reorder the terms:
-2 + -7 + r = -8

Combine like terms: -2 + -7 = -9
-9 + r = -8

Solving
-9 + r = -8

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 + r = -8 + 9

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

Combine like terms: -8 + 9 = 1
r = 1

Simplifying
r = 1

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