Question

7x-5y=4; what does x and y equal

Answer 1

To solve for x:

7x - 5y = 4   Add 5y to both sides
       7x = 5y + 4   Divide both sides by 7
         x = $\frac{5}{7}$y + $\frac{4}{7}$
                 or
         x = $\frac{5y + 4}{7}$

To solve for y:

7x - 5y = 4   Subtract 7x from both sides
      -5y = -7x + 4   Divide both sides by -5
         y = $\frac{7}{5}$x - $\frac{4}{5}$
                or
         y = $\frac{7x - 4}{5}$