a+a+3=3a+6

Solution for a+a+3=3a+6 equation:

Simplifying
a + a + 3 = 3a + 6

Reorder the terms:
3 + a + a = 3a + 6

Combine like terms: a + a = 2a
3 + 2a = 3a + 6

Reorder the terms:
3 + 2a = 6 + 3a

Solving
3 + 2a = 6 + 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.
3 + 2a + -3a = 6 + 3a + -3a

Combine like terms: 2a + -3a = -1a
3 + -1a = 6 + 3a + -3a

Combine like terms: 3a + -3a = 0
3 + -1a = 6 + 0
3 + -1a = 6

Add '-3' to each side of the equation.
3 + -3 + -1a = 6 + -3

Combine like terms: 3 + -3 = 0
0 + -1a = 6 + -3
-1a = 6 + -3

Combine like terms: 6 + -3 = 3
-1a = 3

Divide each side by '-1'.
a = -3

Simplifying
a = -3