-1-r=18

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Solution for -1-r=18 equation: 


Simplifying
-1 + -1r = 18

Solving
-1 + -1r = 18

Solving for variable 'r'.

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

Add '1' to each side of the equation.
-1 + 1 + -1r = 18 + 1

Combine like terms: -1 + 1 = 0
0 + -1r = 18 + 1
-1r = 18 + 1

Combine like terms: 18 + 1 = 19
-1r = 19

Divide each side by '-1'.
r = -19

Simplifying
r = -19

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