75=-20+(-3r)+(-2r)

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Solution for 75=-20+(-3r)+(-2r) equation:


Simplifying
75 = -20 + (-3r) + (-2r)

Combine like terms: (-3r) + (-2r) = -5r
75 = -20 + -5r

Solving
75 = -20 + -5r

Solving for variable 'r'.

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

Add '5r' to each side of the equation.
75 + 5r = -20 + -5r + 5r

Combine like terms: -5r + 5r = 0
75 + 5r = -20 + 0
75 + 5r = -20

Add '-75' to each side of the equation.
75 + -75 + 5r = -20 + -75

Combine like terms: 75 + -75 = 0
0 + 5r = -20 + -75
5r = -20 + -75

Combine like terms: -20 + -75 = -95
5r = -95

Divide each side by '5'.
r = -19

Simplifying
r = -19

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