# Chapter 1 - Section 1.4 - Angles and Their Relationships - Exercises: 26

$\angle$x=39$^{\circ}$ and $\angle$y=51$^{\circ}$

#### Work Step by Step

y=x+12 x+y=90 x+(x+12)=90 2x=78 x=39 y=(39)+12 y=51

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