Question

3x - 4y = 4y = 20 ; x + 24 = 5​

Answer 1

Answer:

The given equations are 3x - 4y = 20 …(1)

and x + 2y = 5 …(2)

Multiplying equation (1) by 1 and (2) by 2, we get

3x - 4y = 20 ….(3)

2x + 4y = 10 ….(4)

Adding these equations, we get

5x = 30

implies x = 6

Substituting x = 6 in equation (1), we get

3×6−4y=20

implies 18 - 4y = 20

implies - 4y = 2

implies y=−12

Hence, the solution is x=6y=−12}.