4x + 3y = 11
There should have been a 2nd equation so that the exact value of x or y can be solved. In this case, we can only infer the value based on a formula.
4x + 3y = 11
Find value of x based on the above equation:
4x = 11 - 3y
x = (11-3y) ÷ 4
Find value of y based on the above equation:
3y = 11 - 4x
y = (11-4x) ÷ 3