Answer:
[tex]14x + 6y = 10 \\ - 14x - 35y = 77[/tex]
multiply all terms in the top equation by 2
multiply all terms in the second equation by -7. it would then add the two equations together to cancel out the variable x
You will then have two equations in terms of y
solve for y and either equation then substitute that value for y into the other equation then solve for x
