Respuesta :

carlosego

Answer:

A. (-1,3)

Step-by-step explanation:

To solve this problem, enter equation (i) in equation (ii)

2x+y=1  (i)

y= 1 -2x

3x-y=-6   (ii)

3x - (1-2x) = -6

3x - 1 +2x = -6

5x = -5

x = -1.  (iii)

Replace (iii) in (i) and clear y

2(-1) + y = 1

y = 1+2

y = 3

The solution is Option A. (-1, 3)

zainebamir540

Answer:

Choice A  is correct. (-1,3) is the solution.

Step-by-step explanation:

We have given the system of linear equations:

2x+y=1           (eq I)

3x-y=-6           (eq Ii)

We have to find the solution of system of linear equations.

find the value of y from (eq I) and put in (eq II) we have,

y = 1 - 2x        ( eq III)

Now put this value is (eqI) .

3x-(1 - 2x) = -6

3x - 1 + 2x = -6

5x = -6+1

5x = -5

x = -1

Now, put this value of x in ( eq III) we have,

y = 1 - 2(-1)

y = 1 +2

y = 3

(-1,3) is the  solution to this system of linear equations.

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