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3 votes
3 votes
12H +9
t
8G + 45
2G + 75
a
b

12H +9 t 8G + 45 2G + 75 a b-example-1
User Alex Flint
by
3.9k points

1 Answer

4 votes
4 votes

Answer:

y =. 9 w= 3

Explanation:

12y-30=5y+33. (corresponding angles in parallel lines are equal)

12y-30=5y+33

7y - 30 = 33

7y = 63

y= 9

angles in straight line form 180 and corresponding angles

15 w + 57 =( 180-(9w+51))

15 w + 57 =( 180-9w-51). -------------- you must multiply the negative throughout the bracket to 51 as you are subtracting that whole value from 180

15 w + 57 =180-9w-51

24w+57 = 180-51

24w= 180-51-57=72

24w=72

w= 3

User Ienaxxx
by
3.3k points