-8-7r=-(-7+2r)

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Solution for -8-7r=-(-7+2r) equation:


Simplifying
-8 + -7r = -1(-7 + 2r)
-8 + -7r = (-7 * -1 + 2r * -1)
-8 + -7r = (7 + -2r)

Solving
-8 + -7r = 7 + -2r

Solving for variable 'r'.

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

Add '2r' to each side of the equation.
-8 + -7r + 2r = 7 + -2r + 2r

Combine like terms: -7r + 2r = -5r
-8 + -5r = 7 + -2r + 2r

Combine like terms: -2r + 2r = 0
-8 + -5r = 7 + 0
-8 + -5r = 7

Add '8' to each side of the equation.
-8 + 8 + -5r = 7 + 8

Combine like terms: -8 + 8 = 0
0 + -5r = 7 + 8
-5r = 7 + 8

Combine like terms: 7 + 8 = 15
-5r = 15

Divide each side by '-5'.
r = -3

Simplifying
r = -3

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