Which is the best first step when solving the following system of equations?
x + y = 3. 4 x minus y = 7.

- Multiply the first equation by 4.
- Add the first equation to the second equation.
- Multiply the second equation by Negative 1.
- Subtract the second equation from the first equation.

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.