Solve the system using substitution x=3y-11 4x-3y=-26

x=3y-11

then now putting the value of x in second equation

4 (3y-11) - 3y = 26

12y - 44-3y=26

9y=44+26

9y=70

y=70/9

now putting the value of y in 1st equation then

x=3*70/9-11

x=37/3

now checking this is correct or not in 2nd eqn

4*37/3-3*70/9=26

148-70/3=26

26=26