Which of the following equations has no solution?

Which of the following equations has the solution of (2, -3) ?

Which of the following equations has the solution (1,-1)?

Which one of the following equations has no solution?

Which one of the following equations has no solution ?

4. Which one of the following equations has no solution?

Which of the following equations has solution in the set of integers? (a) x^(2)=1

Which of the following equation has '5' as solution?

Which of the following equations has x=2 as a solution ?

Which of the following equations has the same solutions as the equation 40-6x=x ^(2) -y ?

Find the value of k for which the following pair of equations has no solution : x+2y=3, (k-1)+(k+1)y=(k+2) .