5x-6y=41
y=3x-4
Sub y in the 2nd equation into the 1st.
5x -6(3x - 4)=41
5x - 18x +24=41 isolate x to one side
-13x=41 - 24=17
-13x=17 divide both sides by 13
-x=17/13 mulriply both sides by -1
x= - 17/13 Sub into 2nd equation
y=3(-17/13) - 4
y=-51/13 - 4
y=-7 12/13
Now try and solve the ones exactly the same as I did. Good luck.