4-3r+r-2=18

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Solution for 4-3r+r-2=18 equation:


Simplifying
4 + -3r + r + -2 = 18

Reorder the terms:
4 + -2 + -3r + r = 18

Combine like terms: 4 + -2 = 2
2 + -3r + r = 18

Combine like terms: -3r + r = -2r
2 + -2r = 18

Solving
2 + -2r = 18

Solving for variable 'r'.

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

Add '-2' to each side of the equation.
2 + -2 + -2r = 18 + -2

Combine like terms: 2 + -2 = 0
0 + -2r = 18 + -2
-2r = 18 + -2

Combine like terms: 18 + -2 = 16
-2r = 16

Divide each side by '-2'.
r = -8

Simplifying
r = -8

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