9a+4-4a=2a-16

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Solution for 9a+4-4a=2a-16 equation:


Simplifying
9a + 4 + -4a = 2a + -16

Reorder the terms:
4 + 9a + -4a = 2a + -16

Combine like terms: 9a + -4a = 5a
4 + 5a = 2a + -16

Reorder the terms:
4 + 5a = -16 + 2a

Solving
4 + 5a = -16 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
4 + 5a + -2a = -16 + 2a + -2a

Combine like terms: 5a + -2a = 3a
4 + 3a = -16 + 2a + -2a

Combine like terms: 2a + -2a = 0
4 + 3a = -16 + 0
4 + 3a = -16

Add '-4' to each side of the equation.
4 + -4 + 3a = -16 + -4

Combine like terms: 4 + -4 = 0
0 + 3a = -16 + -4
3a = -16 + -4

Combine like terms: -16 + -4 = -20
3a = -20

Divide each side by '3'.
a = -6.666666667

Simplifying
a = -6.666666667

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