5r-13=-40+8r

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Solution for 5r-13=-40+8r equation:


Simplifying
5r + -13 = -40 + 8r

Reorder the terms:
-13 + 5r = -40 + 8r

Solving
-13 + 5r = -40 + 8r

Solving for variable 'r'.

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

Add '-8r' to each side of the equation.
-13 + 5r + -8r = -40 + 8r + -8r

Combine like terms: 5r + -8r = -3r
-13 + -3r = -40 + 8r + -8r

Combine like terms: 8r + -8r = 0
-13 + -3r = -40 + 0
-13 + -3r = -40

Add '13' to each side of the equation.
-13 + 13 + -3r = -40 + 13

Combine like terms: -13 + 13 = 0
0 + -3r = -40 + 13
-3r = -40 + 13

Combine like terms: -40 + 13 = -27
-3r = -27

Divide each side by '-3'.
r = 9

Simplifying
r = 9

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