-8r+7=-r-7

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Solution for -8r+7=-r-7 equation:


Simplifying
-8r + 7 = -1r + -7

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

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

Solving
7 + -8r = -7 + -1r

Solving for variable 'r'.

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

Add 'r' to each side of the equation.
7 + -8r + r = -7 + -1r + r

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

Combine like terms: -1r + r = 0
7 + -7r = -7 + 0
7 + -7r = -7

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

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

Combine like terms: -7 + -7 = -14
-7r = -14

Divide each side by '-7'.
r = 2

Simplifying
r = 2

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