All you do is add a negative sign to 80/49 and then simplifiy
<h3>Given:</h3>
The sum of three times a Number (x) and (15) is equal to 42.
<h3>To find:</h3>
The numbers.
<h3>Solution:</h3>
The first no. will be 
And,the second no. will be 
<h3>A/Q</h3>





Therefore,the first number will be ,




Hence,Verified.
Answer:
45 degrees
Step-by-step explanation:
Since all three angles would equal 180 degrees you would do 72 + 63 = 135. Then 180 - 135 = 45
hope this helps! plz mark brainliest? :)