20r-5=-4

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Solution for 20r-5=-4 equation: 


Simplifying
20r + -5 = -4

Reorder the terms:
-5 + 20r = -4

Solving
-5 + 20r = -4

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 + 20r = -4 + 5

Combine like terms: -5 + 5 = 0
0 + 20r = -4 + 5
20r = -4 + 5

Combine like terms: -4 + 5 = 1
20r = 1

Divide each side by '20'.
r = 0.05

Simplifying
r = 0.05

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