3x - 4y = - 5

y = 4x - 2

Is (1,2) a solution of the system?

Replace x with the given x value in the solution to see if it equals the Y value given in the solution:

3x - 4y = - 5

3 (1) - 4 (2) =

3 - 8 = - 5

True.

y = 4x-2

y = 4 (1) - 2

y = 4-2

y = 2

True.

Yes (1,2) is a solution.