-2(5r+9)+2=(r-3)

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Solution for -2(5r+9)+2=(r-3) equation:


Simplifying
-2(5r + 9) + 2 = (r + -3)

Reorder the terms:
-2(9 + 5r) + 2 = (r + -3)
(9 * -2 + 5r * -2) + 2 = (r + -3)
(-18 + -10r) + 2 = (r + -3)

Reorder the terms:
-18 + 2 + -10r = (r + -3)

Combine like terms: -18 + 2 = -16
-16 + -10r = (r + -3)

Reorder the terms:
-16 + -10r = (-3 + r)

Remove parenthesis around (-3 + r)
-16 + -10r = -3 + r

Solving
-16 + -10r = -3 + 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.
-16 + -10r + -1r = -3 + r + -1r

Combine like terms: -10r + -1r = -11r
-16 + -11r = -3 + r + -1r

Combine like terms: r + -1r = 0
-16 + -11r = -3 + 0
-16 + -11r = -3

Add '16' to each side of the equation.
-16 + 16 + -11r = -3 + 16

Combine like terms: -16 + 16 = 0
0 + -11r = -3 + 16
-11r = -3 + 16

Combine like terms: -3 + 16 = 13
-11r = 13

Divide each side by '-11'.
r = -1.181818182

Simplifying
r = -1.181818182

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