Answer:
x=-5/2+3y
Step-by-step explanation:
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2x+8x=30. x= #of pens
10x=30. combine like terms
x=3. divide by 10 to isolate (get by itself) x
2(3)=6. the # of white pens are represented by 2x
6 white pens
hope this helped!
(x - 9)(x + 9) would give you x^2 - 81 when you get a plus and minus like that after you factor the middle term is canceled out so the answer would be (x - 9)^2
A right angle is 90 degrees so 90 plus 20 would equal 110
Answer: 110 degrees
Answer:
I think that the answer is 5
