# Chapter 1 - Test: 2

$145^{\circ};35^{\circ}$

#### Work Step by Step

1. Supplementary angles have a sum of 180 degrees; make the equation and solve for x (7x+19)+(2x-1)=180 9x+18=180 9x=162 x=18 2. Then plug x into angles : 7(18)+19=145 2(18)-1=35

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