8-3r-1=7

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Solution for 8-3r-1=7 equation: 


Simplifying
8 + -3r + -1 = 7

Reorder the terms:
8 + -1 + -3r = 7

Combine like terms: 8 + -1 = 7
7 + -3r = 7

Add '-7' to each side of the equation.
7 + -7 + -3r = 7 + -7

Combine like terms: 7 + -7 = 0
0 + -3r = 7 + -7
-3r = 7 + -7

Combine like terms: 7 + -7 = 0
-3r = 0

Solving
-3r = 0

Solving for variable 'r'.

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

Divide each side by '-3'.
r = 0

Simplifying
r = 0

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