20.6+3a=a+38

Solution for 20.6+3a=a+38 equation:

Simplifying
20.6 + 3a = a + 38

Reorder the terms:
20.6 + 3a = 38 + a

Solving
20.6 + 3a = 38 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
20.6 + 3a + -1a = 38 + a + -1a

Combine like terms: 3a + -1a = 2a
20.6 + 2a = 38 + a + -1a

Combine like terms: a + -1a = 0
20.6 + 2a = 38 + 0
20.6 + 2a = 38

Add '-20.6' to each side of the equation.
20.6 + -20.6 + 2a = 38 + -20.6

Combine like terms: 20.6 + -20.6 = 0.0
0.0 + 2a = 38 + -20.6
2a = 38 + -20.6

Combine like terms: 38 + -20.6 = 17.4
2a = 17.4

Divide each side by '2'.
a = 8.7

Simplifying
a = 8.7