Question

Please help me ASAP!!

Answer 1

The answer is D, i.e. the system was solved via elimination

If you multiply the first equation by 5, the system becomes

`\left \{ {{-5x-10y=35} \atop {5x-6y=-3}} \right.`

If you sum the two equations, you get

`-16y = 32`

And so if you substitute the second equation of system A with this new equation, you'll get system B.