-7-4r=-3(-7-8r)

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Solution for -7-4r=-3(-7-8r) equation:


Simplifying
-7 + -4r = -3(-7 + -8r)
-7 + -4r = (-7 * -3 + -8r * -3)
-7 + -4r = (21 + 24r)

Solving
-7 + -4r = 21 + 24r

Solving for variable 'r'.

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

Add '-24r' to each side of the equation.
-7 + -4r + -24r = 21 + 24r + -24r

Combine like terms: -4r + -24r = -28r
-7 + -28r = 21 + 24r + -24r

Combine like terms: 24r + -24r = 0
-7 + -28r = 21 + 0
-7 + -28r = 21

Add '7' to each side of the equation.
-7 + 7 + -28r = 21 + 7

Combine like terms: -7 + 7 = 0
0 + -28r = 21 + 7
-28r = 21 + 7

Combine like terms: 21 + 7 = 28
-28r = 28

Divide each side by '-28'.
r = -1

Simplifying
r = -1

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