2-4r=-18

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Solution for 2-4r=-18 equation: 


Simplifying
2 + -4r = -18

Solving
2 + -4r = -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 + -4r = -18 + -2

Combine like terms: 2 + -2 = 0
0 + -4r = -18 + -2
-4r = -18 + -2

Combine like terms: -18 + -2 = -20
-4r = -20

Divide each side by '-4'.
r = 5

Simplifying
r = 5

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