5.2=A-.4

Solution for 5.2=A-.4 equation:

Simplifying
5.2 = A + -0.4

Reorder the terms:
5.2 = -0.4 + A

Solving
5.2 = -0.4 + 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.
5.2 + -1A = -0.4 + A + -1A

Combine like terms: A + -1A = 0
5.2 + -1A = -0.4 + 0
5.2 + -1A = -0.4

Add '-5.2' to each side of the equation.
5.2 + -5.2 + -1A = -0.4 + -5.2

Combine like terms: 5.2 + -5.2 = 0.0
0.0 + -1A = -0.4 + -5.2
-1A = -0.4 + -5.2

Combine like terms: -0.4 + -5.2 = -5.6
-1A = -5.6

Divide each side by '-1'.
A = 5.6

Simplifying
A = 5.6