-3r-20=-5(4+5r)-2r

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Solution for -3r-20=-5(4+5r)-2r equation:


Simplifying
-3r + -20 = -5(4 + 5r) + -2r

Reorder the terms:
-20 + -3r = -5(4 + 5r) + -2r
-20 + -3r = (4 * -5 + 5r * -5) + -2r
-20 + -3r = (-20 + -25r) + -2r

Combine like terms: -25r + -2r = -27r
-20 + -3r = -20 + -27r

Add '20' to each side of the equation.
-20 + 20 + -3r = -20 + 20 + -27r

Combine like terms: -20 + 20 = 0
0 + -3r = -20 + 20 + -27r
-3r = -20 + 20 + -27r

Combine like terms: -20 + 20 = 0
-3r = 0 + -27r
-3r = -27r

Solving
-3r = -27r

Solving for variable 'r'.

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

Add '27r' to each side of the equation.
-3r + 27r = -27r + 27r

Combine like terms: -3r + 27r = 24r
24r = -27r + 27r

Combine like terms: -27r + 27r = 0
24r = 0

Divide each side by '24'.
r = 0

Simplifying
r = 0

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