8=9+7xr

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Solution for 8=9+7xr equation:


Simplifying
8 = 9 + 7xr

Solving
8 = 9 + 7rx

Solving for variable 'r'.

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

Add '-7rx' to each side of the equation.
8 + -7rx = 9 + 7rx + -7rx

Combine like terms: 7rx + -7rx = 0
8 + -7rx = 9 + 0
8 + -7rx = 9

Add '-8' to each side of the equation.
8 + -8 + -7rx = 9 + -8

Combine like terms: 8 + -8 = 0
0 + -7rx = 9 + -8
-7rx = 9 + -8

Combine like terms: 9 + -8 = 1
-7rx = 1

Divide each side by '-7x'.
r = -0.1428571429x-1

Simplifying
r = -0.1428571429x-1

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