2a-2+4a-8-a=-20

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Solution for 2a-2+4a-8-a=-20 equation:


Simplifying
2a + -2 + 4a + -8 + -1a = -20

Reorder the terms:
-2 + -8 + 2a + 4a + -1a = -20

Combine like terms: -2 + -8 = -10
-10 + 2a + 4a + -1a = -20

Combine like terms: 2a + 4a = 6a
-10 + 6a + -1a = -20

Combine like terms: 6a + -1a = 5a
-10 + 5a = -20

Solving
-10 + 5a = -20

Solving for variable 'a'.

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

Add '10' to each side of the equation.
-10 + 10 + 5a = -20 + 10

Combine like terms: -10 + 10 = 0
0 + 5a = -20 + 10
5a = -20 + 10

Combine like terms: -20 + 10 = -10
5a = -10

Divide each side by '5'.
a = -2

Simplifying
a = -2

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