120=4(r-3)

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Solution for 120=4(r-3) equation:


Simplifying
120 = 4(r + -3)

Reorder the terms:
120 = 4(-3 + r)
120 = (-3 * 4 + r * 4)
120 = (-12 + 4r)

Solving
120 = -12 + 4r

Solving for variable 'r'.

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

Add '-4r' to each side of the equation.
120 + -4r = -12 + 4r + -4r

Combine like terms: 4r + -4r = 0
120 + -4r = -12 + 0
120 + -4r = -12

Add '-120' to each side of the equation.
120 + -120 + -4r = -12 + -120

Combine like terms: 120 + -120 = 0
0 + -4r = -12 + -120
-4r = -12 + -120

Combine like terms: -12 + -120 = -132
-4r = -132

Divide each side by '-4'.
r = 33

Simplifying
r = 33

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