28=4(3r+5)

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Solution for 28=4(3r+5) equation:


Simplifying
28 = 4(3r + 5)

Reorder the terms:
28 = 4(5 + 3r)
28 = (5 * 4 + 3r * 4)
28 = (20 + 12r)

Solving
28 = 20 + 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.
28 + -12r = 20 + 12r + -12r

Combine like terms: 12r + -12r = 0
28 + -12r = 20 + 0
28 + -12r = 20

Add '-28' to each side of the equation.
28 + -28 + -12r = 20 + -28

Combine like terms: 28 + -28 = 0
0 + -12r = 20 + -28
-12r = 20 + -28

Combine like terms: 20 + -28 = -8
-12r = -8

Divide each side by '-12'.
r = 0.6666666667

Simplifying
r = 0.6666666667

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