2(4r+6)=.5(12r+18)

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Solution for 2(4r+6)=.5(12r+18) equation:


Simplifying
2(4r + 6) = 0.5(12r + 18)

Reorder the terms:
2(6 + 4r) = 0.5(12r + 18)
(6 * 2 + 4r * 2) = 0.5(12r + 18)
(12 + 8r) = 0.5(12r + 18)

Reorder the terms:
12 + 8r = 0.5(18 + 12r)
12 + 8r = (18 * 0.5 + 12r * 0.5)
12 + 8r = (9 + 6r)

Solving
12 + 8r = 9 + 6r

Solving for variable 'r'.

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

Add '-6r' to each side of the equation.
12 + 8r + -6r = 9 + 6r + -6r

Combine like terms: 8r + -6r = 2r
12 + 2r = 9 + 6r + -6r

Combine like terms: 6r + -6r = 0
12 + 2r = 9 + 0
12 + 2r = 9

Add '-12' to each side of the equation.
12 + -12 + 2r = 9 + -12

Combine like terms: 12 + -12 = 0
0 + 2r = 9 + -12
2r = 9 + -12

Combine like terms: 9 + -12 = -3
2r = -3

Divide each side by '2'.
r = -1.5

Simplifying
r = -1.5

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