-7r-8-5r=-13-7r

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Solution for -7r-8-5r=-13-7r equation:


Simplifying
-7r + -8 + -5r = -13 + -7r

Reorder the terms:
-8 + -7r + -5r = -13 + -7r

Combine like terms: -7r + -5r = -12r
-8 + -12r = -13 + -7r

Solving
-8 + -12r = -13 + -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.
-8 + -12r + 7r = -13 + -7r + 7r

Combine like terms: -12r + 7r = -5r
-8 + -5r = -13 + -7r + 7r

Combine like terms: -7r + 7r = 0
-8 + -5r = -13 + 0
-8 + -5r = -13

Add '8' to each side of the equation.
-8 + 8 + -5r = -13 + 8

Combine like terms: -8 + 8 = 0
0 + -5r = -13 + 8
-5r = -13 + 8

Combine like terms: -13 + 8 = -5
-5r = -5

Divide each side by '-5'.
r = 1

Simplifying
r = 1

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