x = 2y + 1
234.65 by 3125
2y+5=3-x
plot y = x + 2
5t-3=t+2
$2x^{2}$ +3x+-5=(x-1)(x-2)
−21−4−6=(−21)(−4)+(−21)(−6)
plot this line, y = 2x + 1
p-3q=7
$4x^{2}$ +2=0