20=-4(3a-2)

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Solution for 20=-4(3a-2) equation:


Simplifying
20 = -4(3a + -2)

Reorder the terms:
20 = -4(-2 + 3a)
20 = (-2 * -4 + 3a * -4)
20 = (8 + -12a)

Solving
20 = 8 + -12a

Solving for variable 'a'.

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

Add '12a' to each side of the equation.
20 + 12a = 8 + -12a + 12a

Combine like terms: -12a + 12a = 0
20 + 12a = 8 + 0
20 + 12a = 8

Add '-20' to each side of the equation.
20 + -20 + 12a = 8 + -20

Combine like terms: 20 + -20 = 0
0 + 12a = 8 + -20
12a = 8 + -20

Combine like terms: 8 + -20 = -12
12a = -12

Divide each side by '12'.
a = -1

Simplifying
a = -1

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