-2a+20-2a-40=0

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Solution for -2a+20-2a-40=0 equation:


Simplifying
-2a + 20 + -2a + -40 = 0

Reorder the terms:
20 + -40 + -2a + -2a = 0

Combine like terms: 20 + -40 = -20
-20 + -2a + -2a = 0

Combine like terms: -2a + -2a = -4a
-20 + -4a = 0

Solving
-20 + -4a = 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 + -4a = 0 + 20

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

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

Divide each side by '-4'.
a = -5

Simplifying
a = -5

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