Pam went to the deli. She bought 3 pounds of Swiss cheese and a sandwich for a total of $29. Each pound of Swiss cheese cost $7. Which equation can be used to find the cost of the sandwich?
s
,29
×
3
–
7
=
s
29
+
(
3
×
7
)
=
s
29
–
3
–
7
=
s
29
–
(
3
×
7
)
=
s
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