-2+-8r*2+-9+2r-8r=

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Solution for -2+-8r*2+-9+2r-8r= equation:


Simplifying
-2 + -8r * 2 + -9 + 2r + -8r = 0

Reorder the terms for easier multiplication:
-2 + -8 * 2r + -9 + 2r + -8r = 0

Multiply -8 * 2
-2 + -16r + -9 + 2r + -8r = 0

Reorder the terms:
-2 + -9 + -16r + 2r + -8r = 0

Combine like terms: -2 + -9 = -11
-11 + -16r + 2r + -8r = 0

Combine like terms: -16r + 2r = -14r
-11 + -14r + -8r = 0

Combine like terms: -14r + -8r = -22r
-11 + -22r = 0

Solving
-11 + -22r = 0

Solving for variable 'r'.

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

Add '11' to each side of the equation.
-11 + 11 + -22r = 0 + 11

Combine like terms: -11 + 11 = 0
0 + -22r = 0 + 11
-22r = 0 + 11

Combine like terms: 0 + 11 = 11
-22r = 11

Divide each side by '-22'.
r = -0.5

Simplifying
r = -0.5

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