-(r-5)=-(1-4r)-7r

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Solution for -(r-5)=-(1-4r)-7r equation:


Simplifying
-1(r + -5) = -1(1 + -4r) + -7r

Reorder the terms:
-1(-5 + r) = -1(1 + -4r) + -7r
(-5 * -1 + r * -1) = -1(1 + -4r) + -7r
(5 + -1r) = -1(1 + -4r) + -7r
5 + -1r = (1 * -1 + -4r * -1) + -7r
5 + -1r = (-1 + 4r) + -7r

Combine like terms: 4r + -7r = -3r
5 + -1r = -1 + -3r

Solving
5 + -1r = -1 + -3r

Solving for variable 'r'.

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

Add '3r' to each side of the equation.
5 + -1r + 3r = -1 + -3r + 3r

Combine like terms: -1r + 3r = 2r
5 + 2r = -1 + -3r + 3r

Combine like terms: -3r + 3r = 0
5 + 2r = -1 + 0
5 + 2r = -1

Add '-5' to each side of the equation.
5 + -5 + 2r = -1 + -5

Combine like terms: 5 + -5 = 0
0 + 2r = -1 + -5
2r = -1 + -5

Combine like terms: -1 + -5 = -6
2r = -6

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

Simplifying
r = -3

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