18r-12r-17+21-3r-4=

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Solution for 18r-12r-17+21-3r-4= equation:


Simplifying
18r + -12r + -17 + 21 + -3r + -4 = 0

Reorder the terms:
-17 + 21 + -4 + 18r + -12r + -3r = 0

Combine like terms: -17 + 21 = 4
4 + -4 + 18r + -12r + -3r = 0

Combine like terms: 4 + -4 = 0
0 + 18r + -12r + -3r = 0
18r + -12r + -3r = 0

Combine like terms: 18r + -12r = 6r
6r + -3r = 0

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

Solving
3r = 0

Solving for variable 'r'.

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

Divide each side by '3'.
r = 0

Simplifying
r = 0

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