Solve.
y=2x-6
3x+y=4
x=
y=

QUESTION 1

The given system of equation,

We simplify to get.

The correct answer is option A.

1.

A.) (4, −2)

2.

x = -7

y = 2

3.

x = 5

y = 14

QUESTION 2

The given system of equations is

and

We make y the subject in equation (2) to get,

We put equation (3) into equation (1) to obtain,

We group like terms to get,

This implies that,

we divide through by  to get,

Hence the x-coordinate is  

QUESTION 3

The given system is

and

We make  the subject in equation (2)

We put equation (3) into equation (1) to obtain,

We expand the bracket to get,

Group like terms to get,

We simplify to get;

This implies that,

Therefore the y-coordinate is 14.

Step-by-step explanation:

answer: 1, 3 and 5 are correct

step-by-step explanation: