4x-7y=10 over 3x 2y=-7

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Do you really mean to divide one equation by another equation? :confused:

Did you mean two separate equations?

2y=-7

\frac{4x-7y}{3x}=10

In which case:

2y=-7

y=\frac{-7}{2}

y=-3.5

Then substitute in:

\frac{4x-7(-3.5)}{3x}=10

4x-7(-3.5)=3x(10)

4x+24.5=30x

26x=24.5

x=\frac{24.5}{26}

Oh, I get it now, it's:

4x - 7= \frac{10}{3x}

2y = -7

Take the second equation and solve for y.

Then, take the first equation, put the value of y that you got to get the value of x.