4.1+8.2+3.9+p=20

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Solution for 4.1+8.2+3.9+p=20 equation: 


Simplifying
4.1 + 8.2 + 3.9 + p = 20

Combine like terms: 4.1 + 8.2 = 12.3
12.3 + 3.9 + p = 20

Combine like terms: 12.3 + 3.9 = 16.2
16.2 + p = 20

Solving
16.2 + p = 20

Solving for variable 'p'.

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

Add '-16.2' to each side of the equation.
16.2 + -16.2 + p = 20 + -16.2

Combine like terms: 16.2 + -16.2 = 0.0
0.0 + p = 20 + -16.2
p = 20 + -16.2

Combine like terms: 20 + -16.2 = 3.8
p = 3.8

Simplifying
p = 3.8

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