2.Remove the brackets and simplify a) (x + 1) + (x + 2)?
2 answers:
Step-by-step explanation:
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Remove the unnecessary brackets :
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Combine like terms. Like terms are those which have the same base. Only coefficients of like terms can be added or subtracted.
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(X + 1) + (X + 2) = X + 1 + X + 2 = 2x + 3
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Answer:
b
Step-by-step explanation:
Well, since it is asking for an average, we have to add 78+89+87+96= 350... then we divide by 4 which would be 87.5 which IS greater than 80 :) and less than 90 :)
I think the answer is 7 but im not positive
355 ~ 350 102~ 100 350 - 100 = 250
1+1^22+9^1=?
1^22 = 1
9^1 =9
1 + 1 + 9
11