2a-22.1=a-2.5-a+1.9+21.5

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Solution for 2a-22.1=a-2.5-a+1.9+21.5 equation: 


Simplifying
2a + -22.1 = a + -2.5 + -1a + 1.9 + 21.5

Reorder the terms:
-22.1 + 2a = a + -2.5 + -1a + 1.9 + 21.5

Reorder the terms:
-22.1 + 2a = -2.5 + 1.9 + 21.5 + a + -1a

Combine like terms: -2.5 + 1.9 = -0.6
-22.1 + 2a = -0.6 + 21.5 + a + -1a

Combine like terms: -0.6 + 21.5 = 20.9
-22.1 + 2a = 20.9 + a + -1a

Combine like terms: a + -1a = 0
-22.1 + 2a = 20.9 + 0
-22.1 + 2a = 20.9

Solving
-22.1 + 2a = 20.9

Solving for variable 'a'.

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

Add '22.1' to each side of the equation.
-22.1 + 22.1 + 2a = 20.9 + 22.1

Combine like terms: -22.1 + 22.1 = 0.0
0.0 + 2a = 20.9 + 22.1
2a = 20.9 + 22.1

Combine like terms: 20.9 + 22.1 = 43
2a = 43

Divide each side by '2'.
a = 21.5

Simplifying
a = 21.5

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