7(7+4r)=84

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Solution for 7(7+4r)=84 equation: 


Simplifying
7(7 + 4r) = 84
(7 * 7 + 4r * 7) = 84
(49 + 28r) = 84

Solving
49 + 28r = 84

Solving for variable 'r'.

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

Add '-49' to each side of the equation.
49 + -49 + 28r = 84 + -49

Combine like terms: 49 + -49 = 0
0 + 28r = 84 + -49
28r = 84 + -49

Combine like terms: 84 + -49 = 35
28r = 35

Divide each side by '28'.
r = 1.25

Simplifying
r = 1.25

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