a-2a-20=4

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


Simplifying
a + -2a + -20 = 4

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

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

Solving
-20 + -1a = 4

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 + -1a = 4 + 20

Combine like terms: -20 + 20 = 0
0 + -1a = 4 + 20
-1a = 4 + 20

Combine like terms: 4 + 20 = 24
-1a = 24

Divide each side by '-1'.
a = -24

Simplifying
a = -24

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