4r+8=30

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Solution for 4r+8=30 equation: 


Simplifying
4r + 8 = 30

Reorder the terms:
8 + 4r = 30

Solving
8 + 4r = 30

Solving for variable 'r'.

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

Add '-8' to each side of the equation.
8 + -8 + 4r = 30 + -8

Combine like terms: 8 + -8 = 0
0 + 4r = 30 + -8
4r = 30 + -8

Combine like terms: 30 + -8 = 22
4r = 22

Divide each side by '4'.
r = 5.5

Simplifying
r = 5.5

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