Question

7th grade math. Easy but hard for me

Answer 1

∠YDC = 140°

∠FAB = 75°

Explanation:

17)
The equation

`13x-3=55+3x+2`

`13x-3x=55+2+3`

`10x=60\\x=60/10=6`

∠FAB = 13(6) - 3 = 78 - 3 = 75°

18)

The equation

`15x+5=80+6x+6`

`15x-6x=80+6-5`

`9x=81\\x=81/9=9`

∠YDC = 15(9)+5 = 135 + 5 = 140°

Hope this helps

Answer 2

feel free to ask me if you didn't understand a part