Find the value of x and the value of y.

5x - 100 + x - 20 = 180 (sum of supplementary angles is equal 180)
6x - 120  = 180
6x = 300
  x = 50

x - 20 = 50 - 20 = 30

so
3y = 30 (vertical angles are equal)
 y = 10

I'll do the first one for you. it isn't very hard at all.on number one, you have (50 × 3), which equals 150, and (3 × 3), which equals 9. after you establish that, you add 150 and 9 together. so, (150 + 9) equals 159.this means that 53 × 3 = 159.

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