-13-3r-5r=2r+7

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Solution for -13-3r-5r=2r+7 equation:


Simplifying
-13 + -3r + -5r = 2r + 7

Combine like terms: -3r + -5r = -8r
-13 + -8r = 2r + 7

Reorder the terms:
-13 + -8r = 7 + 2r

Solving
-13 + -8r = 7 + 2r

Solving for variable 'r'.

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

Add '-2r' to each side of the equation.
-13 + -8r + -2r = 7 + 2r + -2r

Combine like terms: -8r + -2r = -10r
-13 + -10r = 7 + 2r + -2r

Combine like terms: 2r + -2r = 0
-13 + -10r = 7 + 0
-13 + -10r = 7

Add '13' to each side of the equation.
-13 + 13 + -10r = 7 + 13

Combine like terms: -13 + 13 = 0
0 + -10r = 7 + 13
-10r = 7 + 13

Combine like terms: 7 + 13 = 20
-10r = 20

Divide each side by '-10'.
r = -2

Simplifying
r = -2

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