1. Angles measuring 8x – 3 and 7x + 18 are supplementary. Find the measure of each angle. (5 points)​

85º and 95º

Step-by-step explanation:

supplementary angle total 180

(8x – 3) + (7x + 18)  = 180

Combine like terms

15x + 15 = 180

15x = 165

x = 11

8x – 3

8(11) - 3

88 - 3

85º

7x + 18

7(11) + 18

77 + 18

95º

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.