7=3r+28

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Solution for 7=3r+28 equation:


Simplifying
7 = 3r + 28

Reorder the terms:
7 = 28 + 3r

Solving
7 = 28 + 3r

Solving for variable 'r'.

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

Add '-3r' to each side of the equation.
7 + -3r = 28 + 3r + -3r

Combine like terms: 3r + -3r = 0
7 + -3r = 28 + 0
7 + -3r = 28

Add '-7' to each side of the equation.
7 + -7 + -3r = 28 + -7

Combine like terms: 7 + -7 = 0
0 + -3r = 28 + -7
-3r = 28 + -7

Combine like terms: 28 + -7 = 21
-3r = 21

Divide each side by '-3'.
r = -7

Simplifying
r = -7

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