4a-3=9+a

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Solution for 4a-3=9+a equation:


Simplifying
4a + -3 = 9 + a

Reorder the terms:
-3 + 4a = 9 + a

Solving
-3 + 4a = 9 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
-3 + 4a + -1a = 9 + a + -1a

Combine like terms: 4a + -1a = 3a
-3 + 3a = 9 + a + -1a

Combine like terms: a + -1a = 0
-3 + 3a = 9 + 0
-3 + 3a = 9

Add '3' to each side of the equation.
-3 + 3 + 3a = 9 + 3

Combine like terms: -3 + 3 = 0
0 + 3a = 9 + 3
3a = 9 + 3

Combine like terms: 9 + 3 = 12
3a = 12

Divide each side by '3'.
a = 4

Simplifying
a = 4

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