2r-2(5r-6)=18

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Solution for 2r-2(5r-6)=18 equation:


Simplifying
2r + -2(5r + -6) = 18

Reorder the terms:
2r + -2(-6 + 5r) = 18
2r + (-6 * -2 + 5r * -2) = 18
2r + (12 + -10r) = 18

Reorder the terms:
12 + 2r + -10r = 18

Combine like terms: 2r + -10r = -8r
12 + -8r = 18

Solving
12 + -8r = 18

Solving for variable 'r'.

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

Add '-12' to each side of the equation.
12 + -12 + -8r = 18 + -12

Combine like terms: 12 + -12 = 0
0 + -8r = 18 + -12
-8r = 18 + -12

Combine like terms: 18 + -12 = 6
-8r = 6

Divide each side by '-8'.
r = -0.75

Simplifying
r = -0.75

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