To solve for x, we first need to simplify the left side of the equation by dividing the numerator by the denominator:

(-0.8x + 2.32) / (-0.4) = 3x - 7.9

-0.8x / -0.4 + 2.32 / -0.4 = 3x - 7.9

2x + (-5.8) = 3x - 7.9

Now, let's isolate x on one side of the equation:

2x + 5.8 = 3x - 7.9

Subtract 2x from both sides:

5.8 = x - 7.9

Add 7.9 to both sides:

x = 13.7

Therefore, the solution to the equation is x = 13.7.