3a-4=a+18

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Solution for 3a-4=a+18 equation:


Simplifying
3a + -4 = a + 18

Reorder the terms:
-4 + 3a = a + 18

Reorder the terms:
-4 + 3a = 18 + a

Solving
-4 + 3a = 18 + 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.
-4 + 3a + -1a = 18 + a + -1a

Combine like terms: 3a + -1a = 2a
-4 + 2a = 18 + a + -1a

Combine like terms: a + -1a = 0
-4 + 2a = 18 + 0
-4 + 2a = 18

Add '4' to each side of the equation.
-4 + 4 + 2a = 18 + 4

Combine like terms: -4 + 4 = 0
0 + 2a = 18 + 4
2a = 18 + 4

Combine like terms: 18 + 4 = 22
2a = 22

Divide each side by '2'.
a = 11

Simplifying
a = 11

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