To solve for x, we need to isolate it on one side of the equation.

First, we can simplify the equation by combining like terms:

1.25x + 3.46 = 1.76x + 6.58

Next, we can move all the terms with x to one side of the equation by subtracting 1.25x from both sides:

3.46 = 0.51x + 6.58

Now, we can isolate x by subtracting 6.58 from both sides:

-3.12 = 0.51x

Finally, we can solve for x by dividing both sides by 0.51:

-3.12 / 0.51 = x

x = -6.12