7(5-r)=91

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Solution for 7(5-r)=91 equation: 


Simplifying
7(5 + -1r) = 91
(5 * 7 + -1r * 7) = 91
(35 + -7r) = 91

Solving
35 + -7r = 91

Solving for variable 'r'.

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

Add '-35' to each side of the equation.
35 + -35 + -7r = 91 + -35

Combine like terms: 35 + -35 = 0
0 + -7r = 91 + -35
-7r = 91 + -35

Combine like terms: 91 + -35 = 56
-7r = 56

Divide each side by '-7'.
r = -8

Simplifying
r = -8

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