Which is not a solution to the equation - 3x+y=5?

A.

(-4, - 7)

B.

(3, 14)

C.

(2, - 1)

D.

(1, 8)

-3x+y=5

y=5+3x

Then:

if x=-4; y=5+3 (-4) = 5-12=-7 This is a possible solution.

if x=3; y=5+3 (3) = 5+9=14 This is other possible solution.

if x=2; y=5+3 (2) = 5+6=11, it's not solution.

if x=1; y=5+3 (1) = 5+3=8; this is other possible solution.

C. (2,-1)