Question

1. Consider the system of equations below. What could be the first step in solving by elimination?

3x + 5y = 16
3x + 2y = 10

O Add the two equations together.
O Add 5 to both sides of the first equation.
Ο Multiply the first equation by -1.
Ο Multiply the second equation by 2.​

Answer 1

Multiple the first equation by -1

Explanation:

After doing this you add the two equations together and follow the systems of equations as normal

`-3x+-5y=-16\\3x+2y=10\\-3y=-6\\(-3y)/(-3) =(-6)/(-3) \\y=2`

Therefore y = 2