Question

X + 5y +3z = 4 4y – z=3 6x – 2y + 4z = 0

Answer 1

Answer:

x = $\frac{1}{4}$

y = $\frac{3}{4}$

z = 0

Step-by-step explanation:

You first need to solve for a variable, it won't be as easy as x = 3, you are looking to replace a variable with another equation.

For example, the second equation, 4y-z=3, I can either solve for y or z. It won't be a numerical value but it will get you a step closer.

4y-z=3

4y=z+3

y = $\frac{z}{4} +\frac{3}{4}$

Then you are able to use substitution to negate one of the variables and solve for the other two variables. I won't type that but I think you get the idea.