Question

Solve each system of equations by substitution.

7y + x = 13

x + 7y = 9

Answer 1

Answer:

Either there is mistake in the qn or the answer is there is no solution for the qn.

Step-by-step explanation:

For 1st probability of answer

The right qn can be

7x + y = 13

x + 7y = 9

For which the answer would be

x=287/168

y=25/24

or

The right qn can be

x + 7y = 13

7x + y = 9

For which the answer would be

x=25/24

y=287/168

For 2nd probability of answer

If the qn is right then we have to say that..

If LHS of both qn are the same and RHS is different then there is no solution for the qn as 1 number cannot be equal to 2 other numbers untill and unless it is in limiting function which is not a condition here.

So the anwer would be no solution.

Now you can choose either of the anwers specific to the qn.

Hope you got the idea....