-84=4(3r-3)

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Solution for -84=4(3r-3) equation:


Simplifying
-84 = 4(3r + -3)

Reorder the terms:
-84 = 4(-3 + 3r)
-84 = (-3 * 4 + 3r * 4)
-84 = (-12 + 12r)

Solving
-84 = -12 + 12r

Solving for variable 'r'.

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

Add '-12r' to each side of the equation.
-84 + -12r = -12 + 12r + -12r

Combine like terms: 12r + -12r = 0
-84 + -12r = -12 + 0
-84 + -12r = -12

Add '84' to each side of the equation.
-84 + 84 + -12r = -12 + 84

Combine like terms: -84 + 84 = 0
0 + -12r = -12 + 84
-12r = -12 + 84

Combine like terms: -12 + 84 = 72
-12r = 72

Divide each side by '-12'.
r = -6

Simplifying
r = -6

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