5(a-8)-9a=

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Solution for 5(a-8)-9a= equation:


Simplifying
5(a + -8) + -9a = 0

Reorder the terms:
5(-8 + a) + -9a = 0
(-8 * 5 + a * 5) + -9a = 0
(-40 + 5a) + -9a = 0

Combine like terms: 5a + -9a = -4a
-40 + -4a = 0

Solving
-40 + -4a = 0

Solving for variable 'a'.

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

Add '40' to each side of the equation.
-40 + 40 + -4a = 0 + 40

Combine like terms: -40 + 40 = 0
0 + -4a = 0 + 40
-4a = 0 + 40

Combine like terms: 0 + 40 = 40
-4a = 40

Divide each side by '-4'.
a = -10

Simplifying
a = -10

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