Letters x, y, and z are angle measures. Which equations would guarantee that lines p and q are
parallel? Check all that apply.
O x= z
O x + y = 180°
O x + z = 180°
x=y
Z= 180°

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It’s ( 6x - 4 ) + ( 2x + 16 ) = 180 because your only focusing on 3 angles ( < pqr ) since their is no equation for < p yet , you use the 2 equations you already have which is < q & < r