Solve the system of equations.
2x+3y-z=2
x+y-z=2
x-3y+z=10
what is the value of y?
i really need it

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

Solve the inequaliy: (x^2+2)(x−2)^2(6−2x)> 0

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.