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

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


Simplifying
-4(-7 + 7r) = 4(5r + -5)
(-7 * -4 + 7r * -4) = 4(5r + -5)
(28 + -28r) = 4(5r + -5)

Reorder the terms:
28 + -28r = 4(-5 + 5r)
28 + -28r = (-5 * 4 + 5r * 4)
28 + -28r = (-20 + 20r)

Solving
28 + -28r = -20 + 20r

Solving for variable 'r'.

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

Add '-20r' to each side of the equation.
28 + -28r + -20r = -20 + 20r + -20r

Combine like terms: -28r + -20r = -48r
28 + -48r = -20 + 20r + -20r

Combine like terms: 20r + -20r = 0
28 + -48r = -20 + 0
28 + -48r = -20

Add '-28' to each side of the equation.
28 + -28 + -48r = -20 + -28

Combine like terms: 28 + -28 = 0
0 + -48r = -20 + -28
-48r = -20 + -28

Combine like terms: -20 + -28 = -48
-48r = -48

Divide each side by '-48'.
r = 1

Simplifying
r = 1

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