Answer:
Step-by-step explanation:
x-7y = -49
i) move x to the right-hand side and change its sign
-7y = -49-x
ii) change the signs on both sides of the equation
7y = 49+x
iii) divide both sides of the equation by 7
iv) use the commutative property to reorder the terms
* commutative property: a+b = b+a
Here is the solved answer for this question
Answer:
Answer to A: Each pound of coffee costs $6.32 dollars. Answer to B: He could buy 0.16 pounds of coffee for $1 dollar.
Step-by-step explanation:
For A, we use division. He payed $18.96 dollars for 3 pounds for coffee.
18.96 / 3 = 6.32.
Each pound of coffee costs $6.32 dollars.
For B, we use division Again.
The amount of pounds he could buy for $1 dollar is 0.16 pounds of coffee.
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