33=12r-3(9+r)

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Solution for 33=12r-3(9+r) equation:


Simplifying
33 = 12r + -3(9 + r)
33 = 12r + (9 * -3 + r * -3)
33 = 12r + (-27 + -3r)

Reorder the terms:
33 = -27 + 12r + -3r

Combine like terms: 12r + -3r = 9r
33 = -27 + 9r

Solving
33 = -27 + 9r

Solving for variable 'r'.

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

Add '-9r' to each side of the equation.
33 + -9r = -27 + 9r + -9r

Combine like terms: 9r + -9r = 0
33 + -9r = -27 + 0
33 + -9r = -27

Add '-33' to each side of the equation.
33 + -33 + -9r = -27 + -33

Combine like terms: 33 + -33 = 0
0 + -9r = -27 + -33
-9r = -27 + -33

Combine like terms: -27 + -33 = -60
-9r = -60

Divide each side by '-9'.
r = 6.666666667

Simplifying
r = 6.666666667

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