A+4.5=21.7

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Solution for A+4.5=21.7 equation: 


Simplifying
A + 4.5 = 21.7

Reorder the terms:
4.5 + A = 21.7

Solving
4.5 + A = 21.7

Solving for variable 'A'.

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

Add '-4.5' to each side of the equation.
4.5 + -4.5 + A = 21.7 + -4.5

Combine like terms: 4.5 + -4.5 = 0.0
0.0 + A = 21.7 + -4.5
A = 21.7 + -4.5

Combine like terms: 21.7 + -4.5 = 17.2
A = 17.2

Simplifying
A = 17.2

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