-5=0.25(4+20a)-8a

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Solution for -5=0.25(4+20a)-8a equation: 


Simplifying
-5 = 0.25(4 + 20a) + -8a
-5 = (4 * 0.25 + 20a * 0.25) + -8a
-5 = (1 + 5a) + -8a

Combine like terms: 5a + -8a = -3a
-5 = 1 + -3a

Solving
-5 = 1 + -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.
-5 + 3a = 1 + -3a + 3a

Combine like terms: -3a + 3a = 0
-5 + 3a = 1 + 0
-5 + 3a = 1

Add '5' to each side of the equation.
-5 + 5 + 3a = 1 + 5

Combine like terms: -5 + 5 = 0
0 + 3a = 1 + 5
3a = 1 + 5

Combine like terms: 1 + 5 = 6
3a = 6

Divide each side by '3'.
a = 2

Simplifying
a = 2

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