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Fudgin [204]
3 years ago
15

Rodney is given two linear equations: x – y = 11 and 2x + y = 19. What value of x should he get as a solution for this system of

linear equations?
a.3/41
b.9
c.10
d.41/3
Mathematics
2 answers:
antiseptic1488 [7]3 years ago
8 0
The solution to the answer is as follows:

<span>x - y = 1...[1],
 
2x + y = 19...[2], {[1]+[2]}---> 3x = 30,
 
ie., x = 10. C is correct answer.
</span> 
I hope my answer has come to your help. God bless and have a nice day ahead!
diamong [38]3 years ago
7 0
<h3><u>Answer:</u></h3>

Option: c is the correct answer.

The value of x is 10.

<h3><u>Step-by-step explanation:</u></h3>

We know that a solution of the system of linear equation can be obtained by the method of substitution.

Here we are given a system of equations as:

        x-y=11-------(1)

and  2x+y=19------(2)

We will get the value of y in terms of x from equation(1) and put that value in equation (2) to obtain the value of x as:

y=x-11

Now putting in equation (2)

2x+x-11=19

⇒ 3x-11=19

⇒  3x=19+11

⇒ 3x=30

⇒ x=10

( since on dividing both side by 3)

Hence, the value of x is:

10

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