4+2r=18

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Solution for 4+2r=18 equation: 


Simplifying
4 + 2r = 18

Solving
4 + 2r = 18

Solving for variable 'r'.

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

Add '-4' to each side of the equation.
4 + -4 + 2r = 18 + -4

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

Combine like terms: 18 + -4 = 14
2r = 14

Divide each side by '2'.
r = 7

Simplifying
r = 7

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