9a-6(a+7)=

Solution for 9a-6(a+7)= equation:

Simplifying
9a + -6(a + 7) = 0

Reorder the terms:
9a + -6(7 + a) = 0
9a + (7 * -6 + a * -6) = 0
9a + (-42 + -6a) = 0

Reorder the terms:
-42 + 9a + -6a = 0

Combine like terms: 9a + -6a = 3a
-42 + 3a = 0

Solving
-42 + 3a = 0

Solving for variable 'a'.

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

Add '42' to each side of the equation.
-42 + 42 + 3a = 0 + 42

Combine like terms: -42 + 42 = 0
0 + 3a = 0 + 42
3a = 0 + 42

Combine like terms: 0 + 42 = 42
3a = 42

Divide each side by '3'.
a = 14

Simplifying
a = 14