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Korvikt [17]
3 years ago
12

five times the difference of twice a number and three, decreased by the sum of the number and eight, equals thirteen

Mathematics
1 answer:
trapecia [35]3 years ago
7 0
5x(2y-3)-(y+8)=13 I believe this is correct
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5.) Simplify the following polynomial. -6x3+5x-3-(2x3+4x2-3x+1)
Vera_Pavlovna [14]

Answer:

-8x3 - 4x2 + 8x - 4

Step-by-step explanation:

3 0
3 years ago
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Reuben​ says, "two days ago i was 20 years old. later next​ year, i will be 23 years​ old." how is this​ possible?
Aneli [31]
Let us always base on the present age. We denote this by x. Now, the age he had 2 years ago would then be denoted as (x-2). Let's equate this to 20 years old.

x - 2 = 20
x = 20 + 2
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He should be 22 years old now.

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3 years ago
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Lostsunrise [7]

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4 0
2 years ago
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A rectangle has length X +5 and width X +4 if the perimeter of the rectangle is 42 m what are the length and width of the rectan
Maru [420]
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3 years ago
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jeyben [28]
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Because,
28/20 divided by 2 is 14/10, divided by 2 again is: 7/5
70/50 divided by 2 is 25/35, divided by 2 again is: 5/7
5 0
3 years ago
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