3r+4=28

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Solution for 3r+4=28 equation: 


Simplifying
3r + 4 = 28

Reorder the terms:
4 + 3r = 28

Solving
4 + 3r = 28

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 + 3r = 28 + -4

Combine like terms: 4 + -4 = 0
0 + 3r = 28 + -4
3r = 28 + -4

Combine like terms: 28 + -4 = 24
3r = 24

Divide each side by '3'.
r = 8

Simplifying
r = 8

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