-4(7+3r)=56

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Solution for -4(7+3r)=56 equation: 


Simplifying
-4(7 + 3r) = 56
(7 * -4 + 3r * -4) = 56
(-28 + -12r) = 56

Solving
-28 + -12r = 56

Solving for variable 'r'.

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

Add '28' to each side of the equation.
-28 + 28 + -12r = 56 + 28

Combine like terms: -28 + 28 = 0
0 + -12r = 56 + 28
-12r = 56 + 28

Combine like terms: 56 + 28 = 84
-12r = 84

Divide each side by '-12'.
r = -7

Simplifying
r = -7

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