Question

решите систему
2x-34y=7
7y-x=8

Answer 1

2x-34y=7
7y-x=8

2(7y-8)-34y=7
x=7y-8

14y-16-34y=7
x=7y-8

-20y=23
x=7y-8

y=-1.15
x=7*(-1.15)-8

y=-1.15
x=-16.05