Question

Solve.

y=3x−7
15x−5y=14

Use the substitution method.

A.The solution is (15, 5).

B.The solution is (0, 7).

C.There is no solution.

D.There are an infinite number of solutions.

Answer 1

putting value of y in 15x....
15x-5(3x-7)=14
15x-15x+35=14
15x is getting canceled and we are getting a contradiction that 35=14 so there are no solution

Answer 2

Y=3x-7.------(1)
15x-5y=14 - - - - (2)
Substituting the value of y in eq 2.
15x-5(3x-7) =14...
I thus in above expression the equation are Not satisfied thus it has no solution.
Hope this is ur required answer.