Question

y + 2x = −1
3y − x = 4

and explain what points to graph

Answer 1

Do simultaneous equation using the 2 equation given.

Answer 2

how do i do that?

Answer 3

first equation:
y+2x=-1

then, 2nd equation:
3y-x=4




Then balance (1) with (2)

Then, you get your x value.
After getting x value, insert this any x value to either equation (1) or (2)

I hope this helps. try post your answer here to check if it's correct or not :)