If you were to use the substitution method to solve the following system, choose the new system of equations that would result if x was isolated in the second equation.

5x – 2y – z = 16
x + y + 4z = 6
3x + 2y + 6z = 16

Question

If you were to use the substitution method to solve the following system, choose the new system of equations that would result if x was isolated in the second equation.

5x – 2y – z = 16
x + y + 4z = 6
3x + 2y + 6z = 16

experimentx · Answer

isolate x form eq1 and two, equate them then you get equation in interns of y and z.

again do the same thing from eq2 and eq3 you will have another set of equation in y and z. 

solve them, you will have y and z, then you will have x form any of these equations.