20-4a=-2(a-8)

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Solution for 20-4a=-2(a-8) equation:


Simplifying
20 + -4a = -2(a + -8)

Reorder the terms:
20 + -4a = -2(-8 + a)
20 + -4a = (-8 * -2 + a * -2)
20 + -4a = (16 + -2a)

Solving
20 + -4a = 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.
20 + -4a + 2a = 16 + -2a + 2a

Combine like terms: -4a + 2a = -2a
20 + -2a = 16 + -2a + 2a

Combine like terms: -2a + 2a = 0
20 + -2a = 16 + 0
20 + -2a = 16

Add '-20' to each side of the equation.
20 + -20 + -2a = 16 + -20

Combine like terms: 20 + -20 = 0
0 + -2a = 16 + -20
-2a = 16 + -20

Combine like terms: 16 + -20 = -4
-2a = -4

Divide each side by '-2'.
a = 2

Simplifying
a = 2

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