4r-2-4=18

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


Simplifying
4r + -2 + -4 = 18

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

Combine like terms: -2 + -4 = -6
-6 + 4r = 18

Solving
-6 + 4r = 18

Solving for variable 'r'.

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

Add '6' to each side of the equation.
-6 + 6 + 4r = 18 + 6

Combine like terms: -6 + 6 = 0
0 + 4r = 18 + 6
4r = 18 + 6

Combine like terms: 18 + 6 = 24
4r = 24

Divide each side by '4'.
r = 6

Simplifying
r = 6

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