4(2n-a+5)=5

Solution for 4(2n-a+5)=5 equation:

Simplifying
4(2n + -1a + 5) = 5

Reorder the terms:
4(5 + -1a + 2n) = 5
(5 * 4 + -1a * 4 + 2n * 4) = 5
(20 + -4a + 8n) = 5

Solving
20 + -4a + 8n = 5

Solving for variable 'a'.

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

Add '-20' to each side of the equation.
20 + -4a + -20 + 8n = 5 + -20

Reorder the terms:
20 + -20 + -4a + 8n = 5 + -20

Combine like terms: 20 + -20 = 0
0 + -4a + 8n = 5 + -20
-4a + 8n = 5 + -20

Combine like terms: 5 + -20 = -15
-4a + 8n = -15

Add '-8n' to each side of the equation.
-4a + 8n + -8n = -15 + -8n

Combine like terms: 8n + -8n = 0
-4a + 0 = -15 + -8n
-4a = -15 + -8n

Divide each side by '-4'.
a = 3.75 + 2n

Simplifying
a = 3.75 + 2n