-(2+7r)=-3-2(-3r-7)

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Solution for -(2+7r)=-3-2(-3r-7) equation:


Simplifying
-1(2 + 7r) = -3 + -2(-3r + -7)
(2 * -1 + 7r * -1) = -3 + -2(-3r + -7)
(-2 + -7r) = -3 + -2(-3r + -7)

Reorder the terms:
-2 + -7r = -3 + -2(-7 + -3r)
-2 + -7r = -3 + (-7 * -2 + -3r * -2)
-2 + -7r = -3 + (14 + 6r)

Combine like terms: -3 + 14 = 11
-2 + -7r = 11 + 6r

Solving
-2 + -7r = 11 + 6r

Solving for variable 'r'.

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

Add '-6r' to each side of the equation.
-2 + -7r + -6r = 11 + 6r + -6r

Combine like terms: -7r + -6r = -13r
-2 + -13r = 11 + 6r + -6r

Combine like terms: 6r + -6r = 0
-2 + -13r = 11 + 0
-2 + -13r = 11

Add '2' to each side of the equation.
-2 + 2 + -13r = 11 + 2

Combine like terms: -2 + 2 = 0
0 + -13r = 11 + 2
-13r = 11 + 2

Combine like terms: 11 + 2 = 13
-13r = 13

Divide each side by '-13'.
r = -1

Simplifying
r = -1

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