2a-21.7=1a+1.3

Solution for 2a-21.7=1a+1.3 equation:

Simplifying
2a + -21.7 = 1a + 1.3

Reorder the terms:
-21.7 + 2a = 1a + 1.3

Reorder the terms:
-21.7 + 2a = 1.3 + 1a

Solving
-21.7 + 2a = 1.3 + 1a

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.
-21.7 + 2a + -1a = 1.3 + 1a + -1a

Combine like terms: 2a + -1a = 1a
-21.7 + 1a = 1.3 + 1a + -1a

Combine like terms: 1a + -1a = 0
-21.7 + 1a = 1.3 + 0
-21.7 + 1a = 1.3

Add '21.7' to each side of the equation.
-21.7 + 21.7 + 1a = 1.3 + 21.7

Combine like terms: -21.7 + 21.7 = 0.0
0.0 + 1a = 1.3 + 21.7
1a = 1.3 + 21.7

Combine like terms: 1.3 + 21.7 = 23
1a = 23

Divide each side by '1'.
a = 23

Simplifying
a = 23