Answer:
x = 1
y = -2
Step-by-step explanation:
Using substitution method,
x = 3y + 7 then
3(3y + 7) - 4y = 11
9y + 21 - 4y = 11
5y = 11 - 21
5y = -10 Divide both sides by 5
y = -10/5
y = -2
Substitute y = -2 back in x = 3y + 7
x = 3(-2) + 7
x = -6 + 7
x = 1
