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Irina-Kira [14]
2 years ago
7

25. Save the simultaneous equations 2x-y=4;x+y=5​

Mathematics
1 answer:
Gnoma [55]2 years ago
8 0

Answer:

Step-by-step explanation:

2x-y=4 ..........(1)

x+y=5 ...........(2)

<u>Add equation 1 and 2:</u>

We get:

3x=9

x=9/3

x=3

Substitute value of x in (2):

x+y=5

3+y=5

y=5-3

y=2

(3,2)

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Q2.

Write a number sentence with at least 4 integers explaining their final score of -200. Be sure to use negative and positive integers. See the first question for an example.

Q3.

Write a number sentence with at least 4 integers explaining their final score of -250. Be sure to use negative and positive integers. See the first question for an example.

Q4.

Write a number sentence with at least 4 integers explaining their final score of 0. Be sure to use negative and positive integers. See the first question for an example.

Answer:



Step-by-step explanation:



Step-by-step explanation:

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