8(7-7r)=-8r-40

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Solution for 8(7-7r)=-8r-40 equation:


Simplifying
8(7 + -7r) = -8r + -40
(7 * 8 + -7r * 8) = -8r + -40
(56 + -56r) = -8r + -40

Reorder the terms:
56 + -56r = -40 + -8r

Solving
56 + -56r = -40 + -8r

Solving for variable 'r'.

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

Add '8r' to each side of the equation.
56 + -56r + 8r = -40 + -8r + 8r

Combine like terms: -56r + 8r = -48r
56 + -48r = -40 + -8r + 8r

Combine like terms: -8r + 8r = 0
56 + -48r = -40 + 0
56 + -48r = -40

Add '-56' to each side of the equation.
56 + -56 + -48r = -40 + -56

Combine like terms: 56 + -56 = 0
0 + -48r = -40 + -56
-48r = -40 + -56

Combine like terms: -40 + -56 = -96
-48r = -96

Divide each side by '-48'.
r = 2

Simplifying
r = 2

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