3a+4-a=16

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Solution for 3a+4-a=16 equation:


Simplifying
3a + 4 + -1a = 16

Reorder the terms:
4 + 3a + -1a = 16

Combine like terms: 3a + -1a = 2a
4 + 2a = 16

Solving
4 + 2a = 16

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 = 16 + -4

Combine like terms: 4 + -4 = 0
0 + 2a = 16 + -4
2a = 16 + -4

Combine like terms: 16 + -4 = 12
2a = 12

Divide each side by '2'.
a = 6

Simplifying
a = 6

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