2(r-8)-r=-12-3

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Solution for 2(r-8)-r=-12-3 equation: 


Simplifying
2(r + -8) + -1r = -12 + -3

Reorder the terms:
2(-8 + r) + -1r = -12 + -3
(-8 * 2 + r * 2) + -1r = -12 + -3
(-16 + 2r) + -1r = -12 + -3

Combine like terms: 2r + -1r = 1r
-16 + 1r = -12 + -3

Combine like terms: -12 + -3 = -15
-16 + 1r = -15

Solving
-16 + 1r = -15

Solving for variable 'r'.

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

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

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

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

Divide each side by '1'.
r = 1

Simplifying
r = 1

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