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Solve the following system of equations: (1 point)

−2x + y = 1
−4x + y = −1


(3, 1)

(−1, 3)

(−1, −3)

(1, 3)

User SivaRajini
by
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2 Answers

7 votes
-4x+y=-1
y=-1+4x
1+y=4x
then i used common sense and plugged the given answers in.
1+(3)=4(1)
4=4
D. (1,3)
User Snukus
by
7.7k points
5 votes

Answer:

(1,3)

Explanation:

Given :
-2x + y = 1


-4x + y = -1

To Find : Solve the following system of equations:

Solution:


-2x + y = 1 --1


-4x + y = -1 --2

Substitute the value of from 2 in 1


-2x + (-1+4x) = 1


-2x -1+4x = 1


2x = 2


x = 1

Substitute the value of x in 2


-4(1) + y = -1


-4 + y = -1


y =3

Solution : (1,3)

Hence the solution of system of equations is (1,3)

User Mudit
by
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