9. In the figure below the measure of angle x is 20° less than the measure of angle y. What is the measure of
angle y?

a

Step-by-step explanation:

the line is straight on the bottem so we can assume its 180 degrees so the equation i used to solve was (angle y)65 + (angle x)45(since angle x is 20 degrees less than angle y) + 70 = 180

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9