Solve the following system of equations algebraically for all values of x, y, and z: i have what they solve down to, but i cant get the first step where you get rid of two variables to find the first answer.

Your answer would be ahere is how: perimeter is how long all the sides are. in a rectangle, there are two sets of parallel sides. so, to find this, we would to the following.(15x2)+(4x2)30+838if you have questions ask! and mark me brainliest! i really wanna level up : 3

None because i don’t know.