Question 972433
Please help me solve this equation by substitution. 
-5x + 3y = -5, -7x - 5y = -7 
3y=-5+5x
y=-5/3+5x/3
..
-7x - 5y = -7 
sub y from 1st eq
-7x-5(-5/3+5x/3)=-7
-7x+25/3-25x/3=-7
lcd:3
-21x+25-25x=-21
46x=46x
x=1
y=-5/3+5x/3
3y=-5+5x=-5+5=0
3y=0
y=0
point of intersection: (1, 0)