.25(20-4a)=6a

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Solution for .25(20-4a)=6a equation:


Simplifying
0.25(20 + -4a) = 6a
(20 * 0.25 + -4a * 0.25) = 6a
(5 + -1a) = 6a

Solving
5 + -1a = 6a

Solving for variable 'a'.

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

Add '-6a' to each side of the equation.
5 + -1a + -6a = 6a + -6a

Combine like terms: -1a + -6a = -7a
5 + -7a = 6a + -6a

Combine like terms: 6a + -6a = 0
5 + -7a = 0

Add '-5' to each side of the equation.
5 + -5 + -7a = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -7a = 0 + -5
-7a = 0 + -5

Combine like terms: 0 + -5 = -5
-7a = -5

Divide each side by '-7'.
a = 0.7142857143

Simplifying
a = 0.7142857143

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