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

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


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

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

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

Solving
-9 + -2r = -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.
-9 + -2r + 3r = -6 + -3r + 3r

Combine like terms: -2r + 3r = 1r
-9 + 1r = -6 + -3r + 3r

Combine like terms: -3r + 3r = 0
-9 + 1r = -6 + 0
-9 + 1r = -6

Add '9' to each side of the equation.
-9 + 9 + 1r = -6 + 9

Combine like terms: -9 + 9 = 0
0 + 1r = -6 + 9
1r = -6 + 9

Combine like terms: -6 + 9 = 3
1r = 3

Divide each side by '1'.
r = 3

Simplifying
r = 3

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