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

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


Simplifying
-1 + 5a + -9(-9 + -4a) = 0
-1 + 5a + (-9 * -9 + -4a * -9) = 0
-1 + 5a + (81 + 36a) = 0

Reorder the terms:
-1 + 81 + 5a + 36a = 0

Combine like terms: -1 + 81 = 80
80 + 5a + 36a = 0

Combine like terms: 5a + 36a = 41a
80 + 41a = 0

Solving
80 + 41a = 0

Solving for variable 'a'.

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

Add '-80' to each side of the equation.
80 + -80 + 41a = 0 + -80

Combine like terms: 80 + -80 = 0
0 + 41a = 0 + -80
41a = 0 + -80

Combine like terms: 0 + -80 = -80
41a = -80

Divide each side by '41'.
a = -1.951219512

Simplifying
a = -1.951219512

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