12.4+2a=5a+5.5

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Solution for 12.4+2a=5a+5.5 equation: 


Simplifying
12.4 + 2a = 5a + 5.5

Reorder the terms:
12.4 + 2a = 5.5 + 5a

Solving
12.4 + 2a = 5.5 + 5a

Solving for variable 'a'.

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

Add '-5a' to each side of the equation.
12.4 + 2a + -5a = 5.5 + 5a + -5a

Combine like terms: 2a + -5a = -3a
12.4 + -3a = 5.5 + 5a + -5a

Combine like terms: 5a + -5a = 0
12.4 + -3a = 5.5 + 0
12.4 + -3a = 5.5

Add '-12.4' to each side of the equation.
12.4 + -12.4 + -3a = 5.5 + -12.4

Combine like terms: 12.4 + -12.4 = 0.0
0.0 + -3a = 5.5 + -12.4
-3a = 5.5 + -12.4

Combine like terms: 5.5 + -12.4 = -6.9
-3a = -6.9

Divide each side by '-3'.
a = 2.3

Simplifying
a = 2.3

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