book Maths Puzzle Numerical Ability

Please Help Me Again!!Thanks For The Other Help,too!
5x=4y-7
4x=5y-2
thank you!!!!!!!!!!

Read Solution (Total 0)

book Other Question

2b=20+b the line 2x+3y=1 intersects the curve x(x+y)=10 at A and B.Calculate the coordinates of A and of B.