Question

Consider this system of equations.

p = 2n
p - 5 = 1.5n
What value of n makes the system of equations true.
Explain how you got your answer.

Answer 1

Answer: n=10

Explanation:

p=2n

p-5=1.5n

- replace 2n in the 2nd equation for p

2n-5=1.5n

2n=1.5n=5

2n-1.5n=5

0.5n=5

n=10