3=a(1)+4

Solution for 3=a(1)+4 equation:

Simplifying
3 = a(1) + 4

Reorder the terms for easier multiplication:
3 = 1a + 4

Reorder the terms:
3 = 4 + 1a

Solving
3 = 4 + 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.
3 + -1a = 4 + 1a + -1a

Combine like terms: 1a + -1a = 0
3 + -1a = 4 + 0
3 + -1a = 4

Add '-3' to each side of the equation.
3 + -3 + -1a = 4 + -3

Combine like terms: 3 + -3 = 0
0 + -1a = 4 + -3
-1a = 4 + -3

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

Divide each side by '-1'.
a = -1

Simplifying
a = -1