8=3+4a-3-5a

Solution for 8=3+4a-3-5a equation:

Simplifying
8 = 3 + 4a + -3 + -5a

Reorder the terms:
8 = 3 + -3 + 4a + -5a

Combine like terms: 3 + -3 = 0
8 = 0 + 4a + -5a
8 = 4a + -5a

Combine like terms: 4a + -5a = -1a
8 = -1a

Solving
8 = -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.
8 + a = -1a + a

Combine like terms: -1a + a = 0
8 + a = 0

Add '-8' to each side of the equation.
8 + -8 + a = 0 + -8

Combine like terms: 8 + -8 = 0
0 + a = 0 + -8
a = 0 + -8

Combine like terms: 0 + -8 = -8
a = -8

Simplifying
a = -8