How do i isolate y in 4x - 2y = 22?

Which expressions are equivalent to -6 + 3m

The classrooms are trying to raise $1,200.00 for charity. mrs. leblanc's class has raised 50%. mr. patel's class has raised $235.14 ms. warner's class has raised 1/3 as much as mrs. leblanc's class. how much more money is needed to reach the goal of $1,200.00?

How many solutions does the nonlinear system of equations graphed bellow have?