2a-8+(-a)=-4

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Solution for 2a-8+(-a)=-4 equation:


Simplifying
2a + -8 + (-1a) = -4

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

Combine like terms: 2a + (-1a) = 1a
-8 + 1a = -4

Solving
-8 + 1a = -4

Solving for variable 'a'.

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

Add '8' to each side of the equation.
-8 + 8 + 1a = -4 + 8

Combine like terms: -8 + 8 = 0
0 + 1a = -4 + 8
1a = -4 + 8

Combine like terms: -4 + 8 = 4
1a = 4

Divide each side by '1'.
a = 4

Simplifying
a = 4

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