2a-20.1=a-1.5

Solution for 2a-20.1=a-1.5 equation:

Simplifying
2a + -20.1 = a + -1.5

Reorder the terms:
-20.1 + 2a = a + -1.5

Reorder the terms:
-20.1 + 2a = -1.5 + a

Solving
-20.1 + 2a = -1.5 + 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.
-20.1 + 2a + -1a = -1.5 + a + -1a

Combine like terms: 2a + -1a = 1a
-20.1 + 1a = -1.5 + a + -1a

Combine like terms: a + -1a = 0
-20.1 + 1a = -1.5 + 0
-20.1 + 1a = -1.5

Add '20.1' to each side of the equation.
-20.1 + 20.1 + 1a = -1.5 + 20.1

Combine like terms: -20.1 + 20.1 = 0.0
0.0 + 1a = -1.5 + 20.1
1a = -1.5 + 20.1

Combine like terms: -1.5 + 20.1 = 18.6
1a = 18.6

Divide each side by '1'.
a = 18.6

Simplifying
a = 18.6