4a+12a+9=

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Solution for 4a+12a+9= equation:


Simplifying
4a + 12a + 9 = 0

Reorder the terms:
9 + 4a + 12a = 0

Combine like terms: 4a + 12a = 16a
9 + 16a = 0

Solving
9 + 16a = 0

Solving for variable 'a'.

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

Add '-9' to each side of the equation.
9 + -9 + 16a = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 16a = 0 + -9
16a = 0 + -9

Combine like terms: 0 + -9 = -9
16a = -9

Divide each side by '16'.
a = -0.5625

Simplifying
a = -0.5625

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