6+3(a-3)=16

Solution for 6+3(a-3)=16 equation:

Simplifying
6 + 3(a + -3) = 16

Reorder the terms:
6 + 3(-3 + a) = 16
6 + (-3 * 3 + a * 3) = 16
6 + (-9 + 3a) = 16

Combine like terms: 6 + -9 = -3
-3 + 3a = 16

Solving
-3 + 3a = 16

Solving for variable 'a'.

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

Add '3' to each side of the equation.
-3 + 3 + 3a = 16 + 3

Combine like terms: -3 + 3 = 0
0 + 3a = 16 + 3
3a = 16 + 3

Combine like terms: 16 + 3 = 19
3a = 19

Divide each side by '3'.
a = 6.333333333

Simplifying
a = 6.333333333