This is not a system of simultaneous equations.I don't know how you are supposed to solve this system when there are four variables and only three equations.
In general, start with the first equation, multiply all variables out and combine to isolate the equation in terms of one variable (like x) and plug that value into the second equation wherever x appears. Then solve the second equation for y and plug that into the third equation. However, your solution will still have "w" in it.
by Duane Benson
by Robert Keim
by Jake Hertz
by Duane Benson