Y-9 + y/2 = 180
Add nine to each side
y+y/2=189
Multiply each side by two
2y+y=378
Add the y's together
3y=378
Divide it all by three
y=126
so, Angle B is 126 degrees
I hope that helps!
Answer:
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anything with = is an equation, without is expression.
Answer:
They are a transformation
Step-by-step explanation:
Checked using desmos graphing
I can't answer this because I don't know what she was starting with
