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

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


Simplifying
-20 + 8a + (4a) + -1a = 0

Combine like terms: 8a + (4a) = 12a
-20 + 12a + -1a = 0

Combine like terms: 12a + -1a = 11a
-20 + 11a = 0

Solving
-20 + 11a = 0

Solving for variable 'a'.

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

Add '20' to each side of the equation.
-20 + 20 + 11a = 0 + 20

Combine like terms: -20 + 20 = 0
0 + 11a = 0 + 20
11a = 0 + 20

Combine like terms: 0 + 20 = 20
11a = 20

Divide each side by '11'.
a = 1.818181818

Simplifying
a = 1.818181818

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