Question

10x+11y = 32 7y-9x=8 metodo de reduccion

Answer 1

10x+11y =32
7y-9x =8

x= 22y+64/10

x=-21y-24/-9       

=198y+576=210y-240
198y-210y=-240-576
-12y=-816
y=68


7*68-9x=8
476-9x=8
-9x=8-476
x=59.5