5(6+a)+4a-9=

Solution for 5(6+a)+4a-9= equation:

Simplifying
5(6 + a) + 4a + -9 = 0
(6 * 5 + a * 5) + 4a + -9 = 0
(30 + 5a) + 4a + -9 = 0

Reorder the terms:
30 + -9 + 5a + 4a = 0

Combine like terms: 30 + -9 = 21
21 + 5a + 4a = 0

Combine like terms: 5a + 4a = 9a
21 + 9a = 0

Solving
21 + 9a = 0

Solving for variable 'a'.

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

Add '-21' to each side of the equation.
21 + -21 + 9a = 0 + -21

Combine like terms: 21 + -21 = 0
0 + 9a = 0 + -21
9a = 0 + -21

Combine like terms: 0 + -21 = -21
9a = -21

Divide each side by '9'.
a = -2.333333333

Simplifying
a = -2.333333333