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7th grade math. Easy but hard for me

7th Grade Math Easy But Hard For Me class=
7th Grade Math Easy But Hard For Me class=

Sagot :

Yxzdxnidn
feel free to ask me if you didn't understand a part
View image Yxzdxn
Profereyes12122idn

Answer:

∠YDC = 140°

∠FAB = 75°

Step-by-step explanation:

17)
The equation

[tex]13x-3=55+3x+2[/tex]

[tex]13x-3x=55+2+3[/tex]

[tex]10x=60\\x=60/10=6[/tex]

∠FAB = 13(6) - 3 = 78 - 3 = 75°

18)

The equation

[tex]15x+5=80+6x+6[/tex]

[tex]15x-6x=80+6-5[/tex]

[tex]9x=81\\x=81/9=9[/tex]

∠YDC = 15(9)+5 = 135 + 5 = 140°

Hope this helps

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