-1(r+8)=-10

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Solution for -1(r+8)=-10 equation: 


Simplifying
-1(r + 8) = -10

Reorder the terms:
-1(8 + r) = -10
(8 * -1 + r * -1) = -10
(-8 + -1r) = -10

Solving
-8 + -1r = -10

Solving for variable 'r'.

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

Add '8' to each side of the equation.
-8 + 8 + -1r = -10 + 8

Combine like terms: -8 + 8 = 0
0 + -1r = -10 + 8
-1r = -10 + 8

Combine like terms: -10 + 8 = -2
-1r = -2

Divide each side by '-1'.
r = 2

Simplifying
r = 2

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