30.3+40.8+a=180

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Solution for 30.3+40.8+a=180 equation: 


Simplifying
30.3 + 40.8 + a = 180

Combine like terms: 30.3 + 40.8 = 71.1
71.1 + a = 180

Solving
71.1 + a = 180

Solving for variable 'a'.

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

Add '-71.1' to each side of the equation.
71.1 + -71.1 + a = 180 + -71.1

Combine like terms: 71.1 + -71.1 = 0.0
0.0 + a = 180 + -71.1
a = 180 + -71.1

Combine like terms: 180 + -71.1 = 108.9
a = 108.9

Simplifying
a = 108.9

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