91=7(r-74)

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Solution for 91=7(r-74) equation:


Simplifying
91 = 7(r + -74)

Reorder the terms:
91 = 7(-74 + r)
91 = (-74 * 7 + r * 7)
91 = (-518 + 7r)

Solving
91 = -518 + 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.
91 + -7r = -518 + 7r + -7r

Combine like terms: 7r + -7r = 0
91 + -7r = -518 + 0
91 + -7r = -518

Add '-91' to each side of the equation.
91 + -91 + -7r = -518 + -91

Combine like terms: 91 + -91 = 0
0 + -7r = -518 + -91
-7r = -518 + -91

Combine like terms: -518 + -91 = -609
-7r = -609

Divide each side by '-7'.
r = 87

Simplifying
r = 87

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