Answer:
x = 27
Step-by-step explanation:
1. Plug in the y:
3x - 4(4) = 65
2. Simplify
3x - 16 = 65
3. Switch the sign of the 16 and move it to the other side of the equal sign.
3x = 81
4. Divide the 3 on both sides
3x/3 (cancels out)
81 / 3
x = 27
5. Plug the x value in with the y value to double check your answer.
3(27) - 4(4) = 65
81 - 16 = 65
