let the unknown answer be equal to f
.-2.1 - f = -3/2
-f = -3/2 + 2.1
-f = 0.6
f = -0.6
Answer:
D) 83
Step-by-step explanation:
x+7=90
x= 83
Hope it's helpful...
Step-by-step explanation: The answer is B.
Hello from MrBillDoesMath!
Answer:
2x^3 + 4x^2 - 12x
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Discussion:
2x(x^2+2x-6) =
2x * x^2 + 2x*2x - 6(2x) =
2x^3 + 4x^2 - 12x
Thank you,
MrB
<u>From the problem statement:</u>
n = "a number"
seven less than twice a number is -1
* now i'll underline the changes made by interpreting the way the question was written:
<u>7</u> less than <u>two times</u><u> </u><u>n</u> is -1
7 less than <u>2*</u><u>n</u> <u>equals</u> -1
<u>take away 7 from</u> <u>2n</u> <u>=</u> -1
2n <u>take away 7</u> = -1
2n <u>-</u> 7 = -1
<u><em>2n - 7 = -1</em></u>
<u><em>answer is: (A)</em></u>
