Equation Spaces Out

I inserted an equation in a PP page, and the words now overlap each other a

I have PP 2003, and used MS Equation Editor 3.0. I set the style to 'Text'.

When I originally did it, it looked okay. However, I wanted the equation
running across the width of the screen with text above it, rather than having
two side-by-side spaces. Now that I've resized them, I find the words

How can I fix this?

thanks in advance.