198=-3r+3(3-8r)

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Solution for 198=-3r+3(3-8r) equation:


Simplifying
198 = -3r + 3(3 + -8r)
198 = -3r + (3 * 3 + -8r * 3)
198 = -3r + (9 + -24r)

Reorder the terms:
198 = 9 + -3r + -24r

Combine like terms: -3r + -24r = -27r
198 = 9 + -27r

Solving
198 = 9 + -27r

Solving for variable 'r'.

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

Add '27r' to each side of the equation.
198 + 27r = 9 + -27r + 27r

Combine like terms: -27r + 27r = 0
198 + 27r = 9 + 0
198 + 27r = 9

Add '-198' to each side of the equation.
198 + -198 + 27r = 9 + -198

Combine like terms: 198 + -198 = 0
0 + 27r = 9 + -198
27r = 9 + -198

Combine like terms: 9 + -198 = -189
27r = -189

Divide each side by '27'.
r = -7

Simplifying
r = -7

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