5.5a-1+21+3a=

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Solution for 5.5a-1+21+3a= equation:


Simplifying
5.5a + -1 + 21 + 3a = 0

Reorder the terms:
-1 + 21 + 5.5a + 3a = 0

Combine like terms: -1 + 21 = 20
20 + 5.5a + 3a = 0

Combine like terms: 5.5a + 3a = 8.5a
20 + 8.5a = 0

Solving
20 + 8.5a = 0

Solving for variable 'a'.

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

Add '-20' to each side of the equation.
20 + -20 + 8.5a = 0 + -20

Combine like terms: 20 + -20 = 0
0 + 8.5a = 0 + -20
8.5a = 0 + -20

Combine like terms: 0 + -20 = -20
8.5a = -20

Divide each side by '8.5'.
a = -2.352941176

Simplifying
a = -2.352941176

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