.5r+4=20

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Solution for .5r+4=20 equation: 


Simplifying
0.5r + 4 = 20

Reorder the terms:
4 + 0.5r = 20

Solving
4 + 0.5r = 20

Solving for variable 'r'.

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

Add '-4' to each side of the equation.
4 + -4 + 0.5r = 20 + -4

Combine like terms: 4 + -4 = 0
0 + 0.5r = 20 + -4
0.5r = 20 + -4

Combine like terms: 20 + -4 = 16
0.5r = 16

Divide each side by '0.5'.
r = 32

Simplifying
r = 32

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