=4a+16-(a-4)

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


Simplifying
0 = 4a + 16 + -1(a + -4)

Reorder the terms:
0 = 4a + 16 + -1(-4 + a)
0 = 4a + 16 + (-4 * -1 + a * -1)
0 = 4a + 16 + (4 + -1a)

Reorder the terms:
0 = 16 + 4 + 4a + -1a

Combine like terms: 16 + 4 = 20
0 = 20 + 4a + -1a

Combine like terms: 4a + -1a = 3a
0 = 20 + 3a

Solving
0 = 20 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
0 + -3a = 20 + 3a + -3a
Remove the zero:
-3a = 20 + 3a + -3a

Combine like terms: 3a + -3a = 0
-3a = 20 + 0
-3a = 20

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

Simplifying
a = -6.666666667

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