-2(r-15)=10

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Solution for -2(r-15)=10 equation: 


Simplifying
-2(r + -15) = 10

Reorder the terms:
-2(-15 + r) = 10
(-15 * -2 + r * -2) = 10
(30 + -2r) = 10

Solving
30 + -2r = 10

Solving for variable 'r'.

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

Add '-30' to each side of the equation.
30 + -30 + -2r = 10 + -30

Combine like terms: 30 + -30 = 0
0 + -2r = 10 + -30
-2r = 10 + -30

Combine like terms: 10 + -30 = -20
-2r = -20

Divide each side by '-2'.
r = 10

Simplifying
r = 10

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