Register
Solve the following system of equations: -2x + y = 1 -4x + y = -1 a. (3, 1) b. (-1, 3) c. (-1, -3) d. (1, 3)
56.3k views
0 votes
Solve the following system of equations: -2x + y = 1 -4x + y = -1

a. (3, 1)
b. (-1, 3)
c. (-1, -3)
d. (1, 3)

User Jeff Pal
by
8.1k points

1 Answer

3 votes
With Elimination system:
Substract -4x + y = -1 with -2x + y = 1
and... the result: 2x = 2, so x = 1

Subtitution: -2x + y = 1
⇔-2 . 1 + y =1
⇔ -2 + y = 1
⇔y = 3

The final answer is D ( 1, 3)
User Andrey Shchekin
by
8.4k points
← Prev Question Next Question →

No related questions found

Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
The cost of 5 similar digital cameras and 3 similar video cameras is 3213. Each video camera costs 4 times as much as each digital camera. John buys a digital camera and a video camera. How much does he
9/10 divided by (1/10 plus 2/5)
Link Copied!