Answer :

dasetka
To solve for x:

7x - 5y = 4   Add 5y to both sides
       7x = 5y + 4   Divide both sides by 7
         x = [tex] \frac{5}{7} [/tex]y + [tex] \frac{4}{7} [/tex]
                 or
         x = [tex] \frac{5y + 4}{7} [/tex]

To solve for y:

7x - 5y = 4   Subtract 7x from both sides
      -5y = -7x + 4   Divide both sides by -5
         y = [tex] \frac{7}{5} [/tex]x - [tex] \frac{4}{5} [/tex]
                or
         y = [tex] \frac{7x - 4}{5} [/tex]

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