A(4)=A(4-1)+3

Solution for A(4)=A(4-1)+3 equation:

Simplifying
A(4) = A(4 + -1) + 3

Reorder the terms for easier multiplication:
4A = A(4 + -1) + 3

Combine like terms: 4 + -1 = 3
4A = A(3) + 3

Reorder the terms for easier multiplication:
4A = 3A + 3

Reorder the terms:
4A = 3 + 3A

Solving
4A = 3 + 3A

Solving for variable 'A'.

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

Add '-3A' to each side of the equation.
4A + -3A = 3 + 3A + -3A

Combine like terms: 4A + -3A = 1A
1A = 3 + 3A + -3A

Combine like terms: 3A + -3A = 0
1A = 3 + 0
1A = 3

Divide each side by '1'.
A = 3

Simplifying
A = 3