28=-7+7r

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Solution for 28=-7+7r equation:


Simplifying
28 = -7 + 7r

Solving
28 = -7 + 7r

Solving for variable 'r'.

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

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

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

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

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

Combine like terms: -7 + -28 = -35
-7r = -35

Divide each side by '-7'.
r = 5

Simplifying
r = 5

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