9a-4(-5a-1)=

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Solution for 9a-4(-5a-1)= equation:


Simplifying
9a + -4(-5a + -1) = 0

Reorder the terms:
9a + -4(-1 + -5a) = 0
9a + (-1 * -4 + -5a * -4) = 0
9a + (4 + 20a) = 0

Reorder the terms:
4 + 9a + 20a = 0

Combine like terms: 9a + 20a = 29a
4 + 29a = 0

Solving
4 + 29a = 0

Solving for variable 'a'.

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

Add '-4' to each side of the equation.
4 + -4 + 29a = 0 + -4

Combine like terms: 4 + -4 = 0
0 + 29a = 0 + -4
29a = 0 + -4

Combine like terms: 0 + -4 = -4
29a = -4

Divide each side by '29'.
a = -0.1379310345

Simplifying
a = -0.1379310345

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