8r-15=-50+r

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Solution for 8r-15=-50+r equation:


Simplifying
8r + -15 = -50 + r

Reorder the terms:
-15 + 8r = -50 + r

Solving
-15 + 8r = -50 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
-15 + 8r + -1r = -50 + r + -1r

Combine like terms: 8r + -1r = 7r
-15 + 7r = -50 + r + -1r

Combine like terms: r + -1r = 0
-15 + 7r = -50 + 0
-15 + 7r = -50

Add '15' to each side of the equation.
-15 + 15 + 7r = -50 + 15

Combine like terms: -15 + 15 = 0
0 + 7r = -50 + 15
7r = -50 + 15

Combine like terms: -50 + 15 = -35
7r = -35

Divide each side by '7'.
r = -5

Simplifying
r = -5

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