Can someone solve this
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Segment xz is bisected by point y. if xy = 12x, and the measure of xz = 18x – 6, solve for x

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?