Answer:
Explanation:
xy+7-y = 2(3)+7-3 = 6+7-3 = 10
12x+3y = 12(2)+3(3) = 24+9 = 33
20-xy-2 = 20-2(3)-2 = 20-6-2 = 12
10
33
12
xy + 7 -y Substitute 3 for y and 2 for x
(2)(3) + 7 - 3
6 + 7 -3
13 - 3
12x + 3y
12(2) + 3(3)
24 + 9
20 - xy - 2
20 - (2)(3) -2
20 - 6 - 2
14 - 2
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