Help me pls it for my homework

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0

The mean average cost of standard room per night at a hostel is ? 20.60. therefore, how much does a standard room cost per night at night-time rest days?