Question

Determine which ordered pair in the form (x, y) is a solution of the given equation.

(x + 3)y = 14
(11, 1)
(3, 2)
(5, 2)
(7, 2)

Answer 1

Let's pick on an random answer choice. Say choice D

(7,2) means x = 7 and y = 2

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(x + 3)y = 14

(7 + 3)*2 = 14 ... plug in x = 7 and y = 2

(10)*2 = 14

20 = 14 ... this is false


since the last equation is false, this means (7,2) is NOT a solution to (x + 3)y = 14

So we can eliminate choice D