3a+a-4=

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Solution for 3a+a-4= equation: 


Simplifying
3a + a + -4 = 0

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

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

Solving
-4 + 4a = 0

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 + 4a = 0 + 4

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

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

Divide each side by '4'.
a = 1

Simplifying
a = 1

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