9(r+2)=3(r-2)

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Solution for 9(r+2)=3(r-2) equation:


Simplifying
9(r + 2) = 3(r + -2)

Reorder the terms:
9(2 + r) = 3(r + -2)
(2 * 9 + r * 9) = 3(r + -2)
(18 + 9r) = 3(r + -2)

Reorder the terms:
18 + 9r = 3(-2 + r)
18 + 9r = (-2 * 3 + r * 3)
18 + 9r = (-6 + 3r)

Solving
18 + 9r = -6 + 3r

Solving for variable 'r'.

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

Add '-3r' to each side of the equation.
18 + 9r + -3r = -6 + 3r + -3r

Combine like terms: 9r + -3r = 6r
18 + 6r = -6 + 3r + -3r

Combine like terms: 3r + -3r = 0
18 + 6r = -6 + 0
18 + 6r = -6

Add '-18' to each side of the equation.
18 + -18 + 6r = -6 + -18

Combine like terms: 18 + -18 = 0
0 + 6r = -6 + -18
6r = -6 + -18

Combine like terms: -6 + -18 = -24
6r = -24

Divide each side by '6'.
r = -4

Simplifying
r = -4

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