Please help me on the question on the bottom

You eat 8 strawberries and your friend eats 12 strawberries from a bowl. there are 20 strawberries left. which equation and solution give the original number of strawberries?

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]