Question

solve question for nine

Answer 1

Answer:

9.x=22degree

10.x=31degree

Step-by-step explanation:

9.

x+3x+2=90

4x=90-2

4x= 88

88

x= ---------

4

x= 22 degree

10.

x+25+4x=180

5x=180-25

5x=155

155

x= -------

5

x=31 degree