13+4a-7-2a+3a=

Solution for 13+4a-7-2a+3a= equation:

Simplifying
13 + 4a + -7 + -2a + 3a = 0

Reorder the terms:
13 + -7 + 4a + -2a + 3a = 0

Combine like terms: 13 + -7 = 6
6 + 4a + -2a + 3a = 0

Combine like terms: 4a + -2a = 2a
6 + 2a + 3a = 0

Combine like terms: 2a + 3a = 5a
6 + 5a = 0

Solving
6 + 5a = 0

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 + -6 + 5a = 0 + -6

Combine like terms: 6 + -6 = 0
0 + 5a = 0 + -6
5a = 0 + -6

Combine like terms: 0 + -6 = -6
5a = -6

Divide each side by '5'.
a = -1.2

Simplifying
a = -1.2