r+15.4=21.6

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Solution for r+15.4=21.6 equation: 


Simplifying
r + 15.4 = 21.6

Reorder the terms:
15.4 + r = 21.6

Solving
15.4 + r = 21.6

Solving for variable 'r'.

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

Add '-15.4' to each side of the equation.
15.4 + -15.4 + r = 21.6 + -15.4

Combine like terms: 15.4 + -15.4 = 0.0
0.0 + r = 21.6 + -15.4
r = 21.6 + -15.4

Combine like terms: 21.6 + -15.4 = 6.2
r = 6.2

Simplifying
r = 6.2

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