4r+18=138

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Solution for 4r+18=138 equation: 


Simplifying
4r + 18 = 138

Reorder the terms:
18 + 4r = 138

Solving
18 + 4r = 138

Solving for variable 'r'.

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

Add '-18' to each side of the equation.
18 + -18 + 4r = 138 + -18

Combine like terms: 18 + -18 = 0
0 + 4r = 138 + -18
4r = 138 + -18

Combine like terms: 138 + -18 = 120
4r = 120

Divide each side by '4'.
r = 30

Simplifying
r = 30

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