3.2e+3.5-0.9=-23

Solution for 3.2e+3.5-0.9=-23 equation:

Simplifying
3.2e + 3.5 + -0.9 = -23

Reorder the terms:
3.5 + -0.9 + 3.2e = -23

Combine like terms: 3.5 + -0.9 = 2.6
2.6 + 3.2e = -23

Solving
2.6 + 3.2e = -23

Solving for variable 'e'.

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

Add '-2.6' to each side of the equation.
2.6 + -2.6 + 3.2e = -23 + -2.6

Combine like terms: 2.6 + -2.6 = 0.0
0.0 + 3.2e = -23 + -2.6
3.2e = -23 + -2.6

Combine like terms: -23 + -2.6 = -25.6
3.2e = -25.6

Divide each side by '3.2'.
e = -8

Simplifying
e = -8