112=-4(7-5r)

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Solution for 112=-4(7-5r) equation:


Simplifying
112 = -4(7 + -5r)
112 = (7 * -4 + -5r * -4)
112 = (-28 + 20r)

Solving
112 = -28 + 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.
112 + -20r = -28 + 20r + -20r

Combine like terms: 20r + -20r = 0
112 + -20r = -28 + 0
112 + -20r = -28

Add '-112' to each side of the equation.
112 + -112 + -20r = -28 + -112

Combine like terms: 112 + -112 = 0
0 + -20r = -28 + -112
-20r = -28 + -112

Combine like terms: -28 + -112 = -140
-20r = -140

Divide each side by '-20'.
r = 7

Simplifying
r = 7

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