-6-4(a+9)=-16

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Solution for -6-4(a+9)=-16 equation:


Simplifying
-6 + -4(a + 9) = -16

Reorder the terms:
-6 + -4(9 + a) = -16
-6 + (9 * -4 + a * -4) = -16
-6 + (-36 + -4a) = -16

Combine like terms: -6 + -36 = -42
-42 + -4a = -16

Solving
-42 + -4a = -16

Solving for variable 'a'.

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

Add '42' to each side of the equation.
-42 + 42 + -4a = -16 + 42

Combine like terms: -42 + 42 = 0
0 + -4a = -16 + 42
-4a = -16 + 42

Combine like terms: -16 + 42 = 26
-4a = 26

Divide each side by '-4'.
a = -6.5

Simplifying
a = -6.5

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