0=3a-a-4

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Solution for 0=3a-a-4 equation:


Simplifying
0 = 3a + -1a + -4

Reorder the terms:
0 = -4 + 3a + -1a

Combine like terms: 3a + -1a = 2a
0 = -4 + 2a

Solving
0 = -4 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
0 + -2a = -4 + 2a + -2a
Remove the zero:
-2a = -4 + 2a + -2a

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

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

Simplifying
a = 2

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