A students walks 20m in 5 minutes. What's the students average speed in m/m?
1 answer:
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Start with the original expression.
Use the Distributive Property — multiply by both
and
.
Combine the like terms — add up all the constants.
Reorder the terms.
Answer:
1. y=5-2x
2. -y=5-2x
3.
Step-by-step explanation:
1. 2x+y=5
y=5-2x
2. 2x-y=5
-y=5-2x
3. x+2y=5
2y=5-x