-2(r+9)+28=3(r-3)

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Solution for -2(r+9)+28=3(r-3) equation:


Simplifying
-2(r + 9) + 28 = 3(r + -3)

Reorder the terms:
-2(9 + r) + 28 = 3(r + -3)
(9 * -2 + r * -2) + 28 = 3(r + -3)
(-18 + -2r) + 28 = 3(r + -3)

Reorder the terms:
-18 + 28 + -2r = 3(r + -3)

Combine like terms: -18 + 28 = 10
10 + -2r = 3(r + -3)

Reorder the terms:
10 + -2r = 3(-3 + r)
10 + -2r = (-3 * 3 + r * 3)
10 + -2r = (-9 + 3r)

Solving
10 + -2r = -9 + 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.
10 + -2r + -3r = -9 + 3r + -3r

Combine like terms: -2r + -3r = -5r
10 + -5r = -9 + 3r + -3r

Combine like terms: 3r + -3r = 0
10 + -5r = -9 + 0
10 + -5r = -9

Add '-10' to each side of the equation.
10 + -10 + -5r = -9 + -10

Combine like terms: 10 + -10 = 0
0 + -5r = -9 + -10
-5r = -9 + -10

Combine like terms: -9 + -10 = -19
-5r = -19

Divide each side by '-5'.
r = 3.8

Simplifying
r = 3.8

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