4r+16=20

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Solution for 4r+16=20 equation: 


Simplifying
4r + 16 = 20

Reorder the terms:
16 + 4r = 20

Solving
16 + 4r = 20

Solving for variable 'r'.

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

Add '-16' to each side of the equation.
16 + -16 + 4r = 20 + -16

Combine like terms: 16 + -16 = 0
0 + 4r = 20 + -16
4r = 20 + -16

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

Divide each side by '4'.
r = 1

Simplifying
r = 1

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