-5r-8=7r+28

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Solution for -5r-8=7r+28 equation:


Simplifying
-5r + -8 = 7r + 28

Reorder the terms:
-8 + -5r = 7r + 28

Reorder the terms:
-8 + -5r = 28 + 7r

Solving
-8 + -5r = 28 + 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 + -5r + -7r = 28 + 7r + -7r

Combine like terms: -5r + -7r = -12r
-8 + -12r = 28 + 7r + -7r

Combine like terms: 7r + -7r = 0
-8 + -12r = 28 + 0
-8 + -12r = 28

Add '8' to each side of the equation.
-8 + 8 + -12r = 28 + 8

Combine like terms: -8 + 8 = 0
0 + -12r = 28 + 8
-12r = 28 + 8

Combine like terms: 28 + 8 = 36
-12r = 36

Divide each side by '-12'.
r = -3

Simplifying
r = -3

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