15-2r=-1-5(r-2)

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Solution for 15-2r=-1-5(r-2) equation:


Simplifying
15 + -2r = -1 + -5(r + -2)

Reorder the terms:
15 + -2r = -1 + -5(-2 + r)
15 + -2r = -1 + (-2 * -5 + r * -5)
15 + -2r = -1 + (10 + -5r)

Combine like terms: -1 + 10 = 9
15 + -2r = 9 + -5r

Solving
15 + -2r = 9 + -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.
15 + -2r + 5r = 9 + -5r + 5r

Combine like terms: -2r + 5r = 3r
15 + 3r = 9 + -5r + 5r

Combine like terms: -5r + 5r = 0
15 + 3r = 9 + 0
15 + 3r = 9

Add '-15' to each side of the equation.
15 + -15 + 3r = 9 + -15

Combine like terms: 15 + -15 = 0
0 + 3r = 9 + -15
3r = 9 + -15

Combine like terms: 9 + -15 = -6
3r = -6

Divide each side by '3'.
r = -2

Simplifying
r = -2

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