1r-5=-18

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Solution for 1r-5=-18 equation: 


Simplifying
1r + -5 = -18

Reorder the terms:
-5 + 1r = -18

Solving
-5 + 1r = -18

Solving for variable 'r'.

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

Add '5' to each side of the equation.
-5 + 5 + 1r = -18 + 5

Combine like terms: -5 + 5 = 0
0 + 1r = -18 + 5
1r = -18 + 5

Combine like terms: -18 + 5 = -13
1r = -13

Divide each side by '1'.
r = -13

Simplifying
r = -13

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