4a-15=5-a

Solution for 4a-15=5-a equation:

Simplifying
4a + -15 = 5 + -1a

Reorder the terms:
-15 + 4a = 5 + -1a

Solving
-15 + 4a = 5 + -1a

Solving for variable 'a'.

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

Add 'a' to each side of the equation.
-15 + 4a + a = 5 + -1a + a

Combine like terms: 4a + a = 5a
-15 + 5a = 5 + -1a + a

Combine like terms: -1a + a = 0
-15 + 5a = 5 + 0
-15 + 5a = 5

Add '15' to each side of the equation.
-15 + 15 + 5a = 5 + 15

Combine like terms: -15 + 15 = 0
0 + 5a = 5 + 15
5a = 5 + 15

Combine like terms: 5 + 15 = 20
5a = 20

Divide each side by '5'.
a = 4

Simplifying
a = 4