Question

Solve by substitution method
x+y=14
x+y= 4​

Answer 1

Answer:

First of all the question is a bit wrong

x-y=4

Step-by-step explanation:

x+y=14

x= 14-y -(1)

Putting (1) in equation [2]

=>x-y=4

=>14-y-y=4

=>14-4=2y

=>10=2y

=>5=y

So x= 14-y

x= 9

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Answer 2

Answer:

No solution.

Step-by-step explanation:

First equation:

x+y=14

x=14-y

Second equation:

x+y=4

x=4-y

We can see here that x has two different values even though the polynomial is linear.

This means that the two polynomials are inconsistent, that is they do not have a common solution.

If we plot these polynomials on a graph paper, we will find that their graphs are parallel to each other.

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