3+8a=45+a

Solution for 3+8a=45+a equation:

Simplifying
3 + 8a = 45 + a

Solving
3 + 8a = 45 + 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.
3 + 8a + -1a = 45 + a + -1a

Combine like terms: 8a + -1a = 7a
3 + 7a = 45 + a + -1a

Combine like terms: a + -1a = 0
3 + 7a = 45 + 0
3 + 7a = 45

Add '-3' to each side of the equation.
3 + -3 + 7a = 45 + -3

Combine like terms: 3 + -3 = 0
0 + 7a = 45 + -3
7a = 45 + -3

Combine like terms: 45 + -3 = 42
7a = 42

Divide each side by '7'.
a = 6

Simplifying
a = 6