9(a+15)-4a-15=

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Solution for 9(a+15)-4a-15= equation:


Simplifying
9(a + 15) + -4a + -15 = 0

Reorder the terms:
9(15 + a) + -4a + -15 = 0
(15 * 9 + a * 9) + -4a + -15 = 0
(135 + 9a) + -4a + -15 = 0

Reorder the terms:
135 + -15 + 9a + -4a = 0

Combine like terms: 135 + -15 = 120
120 + 9a + -4a = 0

Combine like terms: 9a + -4a = 5a
120 + 5a = 0

Solving
120 + 5a = 0

Solving for variable 'a'.

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

Add '-120' to each side of the equation.
120 + -120 + 5a = 0 + -120

Combine like terms: 120 + -120 = 0
0 + 5a = 0 + -120
5a = 0 + -120

Combine like terms: 0 + -120 = -120
5a = -120

Divide each side by '5'.
a = -24

Simplifying
a = -24

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