-20r+13=-19r-3r-9

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Solution for -20r+13=-19r-3r-9 equation:


Simplifying
-20r + 13 = -19r + -3r + -9

Reorder the terms:
13 + -20r = -19r + -3r + -9

Reorder the terms:
13 + -20r = -9 + -19r + -3r

Combine like terms: -19r + -3r = -22r
13 + -20r = -9 + -22r

Solving
13 + -20r = -9 + -22r

Solving for variable 'r'.

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

Add '22r' to each side of the equation.
13 + -20r + 22r = -9 + -22r + 22r

Combine like terms: -20r + 22r = 2r
13 + 2r = -9 + -22r + 22r

Combine like terms: -22r + 22r = 0
13 + 2r = -9 + 0
13 + 2r = -9

Add '-13' to each side of the equation.
13 + -13 + 2r = -9 + -13

Combine like terms: 13 + -13 = 0
0 + 2r = -9 + -13
2r = -9 + -13

Combine like terms: -9 + -13 = -22
2r = -22

Divide each side by '2'.
r = -11

Simplifying
r = -11

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