Answer:
x = 4 and y = 9
Step-by-step explanation:
y = 2x+1----(1)
x+3y = 31------(2)
(1)into(2) x + 3(2x+1) = 31
x + 6x + 3 = 31
7x = 28
x = 4
sub x=4 into (1) y = 2(4) + 1
= 9
(Correct me if i am wrong)
