24=4r+4r-12

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Solution for 24=4r+4r-12 equation:


Simplifying
24 = 4r + 4r + -12

Reorder the terms:
24 = -12 + 4r + 4r

Combine like terms: 4r + 4r = 8r
24 = -12 + 8r

Solving
24 = -12 + 8r

Solving for variable 'r'.

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

Add '-8r' to each side of the equation.
24 + -8r = -12 + 8r + -8r

Combine like terms: 8r + -8r = 0
24 + -8r = -12 + 0
24 + -8r = -12

Add '-24' to each side of the equation.
24 + -24 + -8r = -12 + -24

Combine like terms: 24 + -24 = 0
0 + -8r = -12 + -24
-8r = -12 + -24

Combine like terms: -12 + -24 = -36
-8r = -36

Divide each side by '-8'.
r = 4.5

Simplifying
r = 4.5

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