Find an ordered pair (u,v) that solves the system
5u = -7 + 2v
3u = 5v - 25
Multiply the fist equation by 3, this gives us:
15u = -21 + 6v
Multiply the second equation by 5, this gives us:
15u = 25v - 125
Subtract those equations.
That gives us:
19v = 104
v = 104/19
Plug it in...
u = 15/19
(15/19, 104/19)
Now solve this https://web2.0calc.com/questions/need-help-with-this_18
