-a-4+3a=8

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Solution for -a-4+3a=8 equation: 


Simplifying
-1a + -4 + 3a = 8

Reorder the terms:
-4 + -1a + 3a = 8

Combine like terms: -1a + 3a = 2a
-4 + 2a = 8

Solving
-4 + 2a = 8

Solving for variable 'a'.

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

Add '4' to each side of the equation.
-4 + 4 + 2a = 8 + 4

Combine like terms: -4 + 4 = 0
0 + 2a = 8 + 4
2a = 8 + 4

Combine like terms: 8 + 4 = 12
2a = 12

Divide each side by '2'.
a = 6

Simplifying
a = 6

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