-(-2r-7)=-5r

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Solution for -(-2r-7)=-5r equation:


Simplifying
-1(-2r + -7) = -5r

Reorder the terms:
-1(-7 + -2r) = -5r
(-7 * -1 + -2r * -1) = -5r
(7 + 2r) = -5r

Solving
7 + 2r = -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.
7 + 2r + 5r = -5r + 5r

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

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

Add '-7' to each side of the equation.
7 + -7 + 7r = 0 + -7

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

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

Divide each side by '7'.
r = -1

Simplifying
r = -1

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