Please help and add steps!!

Step-by-step explanation:

7x + 6 + 15x - 2 = 180    {Linear Pair}

7x + 15x + 6 - 2 = 180      {Combine like terms}

 22x + 4 = 180

      22x = 180 - 4

     22x = 176

        x = 176/22

x = 8

7x + 6 = 7*8 + 6 = 56 + 6 = 62

5y - 3 = 62  {Vertically opposite angles are equal}

    5y = 62+ 3

    5y = 65

      y = 65/5

y = 13

4) 4x - 30 + x + 90 = 180   {supplementary angles}

    5x + 60 = 180

          5x = 180 - 60

         5x = 120

           x = 24

x = 24

Smallest angle = 4x - 30 = 4*24 - 30 = 96 -30 =66

a

step-by-step explanation:

2, 2, 2 or -4, 20, 29

step-by-step explanation:

there is two ways you can do it.