## Thinking Mathematically (6th Edition)

$x=4^\circ$ The two angles are: $3\times 4^\circ+134^\circ=146^\circ$ $6\times4^\circ+10^\circ=34^\circ$
The two given angles form a straight angle, which means that their sum is $180^\circ$. $3x+134^\circ+6x+10^\circ=180^\circ$ $9x+144^\circ=180^\circ$ $9x=36^\circ$ $x=4^\circ$ The two angles are: $3\times 4^\circ+134^\circ=146^\circ$ $6\times4^\circ+10^\circ=34^\circ$