Question

Using Angle Relationships to Solve Equations

Answer 1

Answer:

8.  x=19

9. 42

10. 23

Step-by-step explanation:

8.

x+x+4+3x-9 =90

5x-5=90

x= 19

9.

x=19

x+4= 23

19+23=42

10.

x+4=23