this is the problem:

-1/2x + 1/8y = 3/4

I know how to do this without fractions, this is what I have so far, now I'm stuck

-1/2x + 1/8y = 3/4

+1/2x +1/2x

1/8y = 1/2x + 3/4

divide each by 1/8 - I don't know how to do this with a fraction

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Hi Trinity;

I assume this is...

(-1/2)x + (1/8)y = 3/4

Let's eliminate the fractions...

Let's note the fact that the denominators, also known as divisors, are 2, 8 and 4. Let's multiply everything by 8...

8[(-1/2)x + (1/8)y] = 8(3/4)

-4x+y=6

If you would like this in the format of y=mx+b such that you can easily graph it, then let's move the -4x from the left side to the right where it becomes positive...

y=4x+6

The slope of this line, change of y divided by change of x, is 4.

The y-intercept, value of y when x=0, is 6.

Does this help, or is there more to this question?

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