Question

Which pair are solutions to the equation?

4xy + 8 = 36    A.

(4, 9) and (3, 2)    B. (1, 7) and (4, 9)    C. (1, 7) and (7, 1)    D. (7, 1) and (3, 2)

Answer 1

4xy+8=36
-8 -8
4xy=28
\4 \4
xy=7