1-8r-8r=-15

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Solution for 1-8r-8r=-15 equation: 


Simplifying
1 + -8r + -8r = -15

Combine like terms: -8r + -8r = -16r
1 + -16r = -15

Solving
1 + -16r = -15

Solving for variable 'r'.

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

Add '-1' to each side of the equation.
1 + -1 + -16r = -15 + -1

Combine like terms: 1 + -1 = 0
0 + -16r = -15 + -1
-16r = -15 + -1

Combine like terms: -15 + -1 = -16
-16r = -16

Divide each side by '-16'.
r = 1

Simplifying
r = 1

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