1+-9a-4=0

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Solution for 1+-9a-4=0 equation:


Simplifying
1 + -9a + -4 = 0

Reorder the terms:
1 + -4 + -9a = 0

Combine like terms: 1 + -4 = -3
-3 + -9a = 0

Solving
-3 + -9a = 0

Solving for variable 'a'.

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

Add '3' to each side of the equation.
-3 + 3 + -9a = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -9a = 0 + 3
-9a = 0 + 3

Combine like terms: 0 + 3 = 3
-9a = 3

Divide each side by '-9'.
a = -0.3333333333

Simplifying
a = -0.3333333333

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