2(r+18)=3(2r-4)

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Solution for 2(r+18)=3(2r-4) equation:


Simplifying
2(r + 18) = 3(2r + -4)

Reorder the terms:
2(18 + r) = 3(2r + -4)
(18 * 2 + r * 2) = 3(2r + -4)
(36 + 2r) = 3(2r + -4)

Reorder the terms:
36 + 2r = 3(-4 + 2r)
36 + 2r = (-4 * 3 + 2r * 3)
36 + 2r = (-12 + 6r)

Solving
36 + 2r = -12 + 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.
36 + 2r + -6r = -12 + 6r + -6r

Combine like terms: 2r + -6r = -4r
36 + -4r = -12 + 6r + -6r

Combine like terms: 6r + -6r = 0
36 + -4r = -12 + 0
36 + -4r = -12

Add '-36' to each side of the equation.
36 + -36 + -4r = -12 + -36

Combine like terms: 36 + -36 = 0
0 + -4r = -12 + -36
-4r = -12 + -36

Combine like terms: -12 + -36 = -48
-4r = -48

Divide each side by '-4'.
r = 12

Simplifying
r = 12

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