First you need to divide 7 and 15, and the answer you get is 8, so 8+7=15. 8 will be your answer.
Read the question correctly
7x+70=98
7x=28
x=4
this is the answer
Angle 1 and 3 are vertical angles, which mean they are identical. Since angle 3 is given as 111 degrees, then angle 1 is also 111 degrees.
All four angles need to equal 360.
Subtract angle 1 and 3 from 360:
360 - 111 - 111 = 138
Angle 2 and 4 would also be identical, so divide the 138 by 2:
138 / 2 = 69
Angle 2 and angle 4 are both 69 degrees.
