2p-a+6=18

Solution for 2p-a+6=18 equation:

Simplifying
2p + -1a + 6 = 18

Reorder the terms:
6 + -1a + 2p = 18

Solving
6 + -1a + 2p = 18

Solving for variable 'a'.

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

Add '-6' to each side of the equation.
6 + -1a + -6 + 2p = 18 + -6

Reorder the terms:
6 + -6 + -1a + 2p = 18 + -6

Combine like terms: 6 + -6 = 0
0 + -1a + 2p = 18 + -6
-1a + 2p = 18 + -6

Combine like terms: 18 + -6 = 12
-1a + 2p = 12

Add '-2p' to each side of the equation.
-1a + 2p + -2p = 12 + -2p

Combine like terms: 2p + -2p = 0
-1a + 0 = 12 + -2p
-1a = 12 + -2p

Divide each side by '-1'.
a = -12 + 2p

Simplifying
a = -12 + 2p