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Which ordered pair is a solution of the system below?

{y+2=x
y=2x−5}
Question 8 options:

(1, -3)


(3, 1)


(2, 0)


(0, -5)

2 Answers

6 votes

Hello. The answer to your problem is (3, 1). I've included a screenshot of the graph.

Which ordered pair is a solution of the system below? {y+2=x y=2x−5} Question 8 options-example-1
User TheUturn
by
5.0k points
5 votes
ANSWER

(3,1)

Step-by-step explanation

The given system of equations are


y + 2 = x...(1)

and


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

Substitute the first equation into the second equation.

This implies that,


y = 2(y + 2) - 5

Expand using the distributive property,


y = 2y + 4 - 5

Group similar terms,


y - 2y = 4 - 5


- y = - 1

Multiply both sides by -1.


y = 1

Put y=1 into equation (1).


1 + 2 = x


x = 3

The solution is (3,1)


The correct choice is B.
User Gmexo
by
6.1k points