-8r+17=-20r-19

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Solution for -8r+17=-20r-19 equation:


Simplifying
-8r + 17 = -20r + -19

Reorder the terms:
17 + -8r = -20r + -19

Reorder the terms:
17 + -8r = -19 + -20r

Solving
17 + -8r = -19 + -20r

Solving for variable 'r'.

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

Add '20r' to each side of the equation.
17 + -8r + 20r = -19 + -20r + 20r

Combine like terms: -8r + 20r = 12r
17 + 12r = -19 + -20r + 20r

Combine like terms: -20r + 20r = 0
17 + 12r = -19 + 0
17 + 12r = -19

Add '-17' to each side of the equation.
17 + -17 + 12r = -19 + -17

Combine like terms: 17 + -17 = 0
0 + 12r = -19 + -17
12r = -19 + -17

Combine like terms: -19 + -17 = -36
12r = -36

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

Simplifying
r = -3

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