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Furkat [3]
3 years ago
15

If x equals 6 what is 5x-(3+9

Mathematics
2 answers:
RSB [31]3 years ago
7 0
I think it is 18 Hope this helps. :)
aleksklad [387]3 years ago
5 0
Let's plug it in first
5*6-(3+9)
Using PEMDAS, clear the parentheses first
5*6-(12)
Now, we should use multiplication or division since there is no exponent
30-12
Finally, we can add or subtract
18
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Simplify -|-7 + 4|.<br><br> -11<br> -3<br> 3<br> 11
myrzilka [38]

|a| = -a for a < 0

|a| = a for a ≥ 0

examples:

|-1| = -(-1) = 1; |-4| = -(-4) = 4; |-0.1| = 0.1; |-109| = 109

|7| = 7; |19| = 19; |0| = 0

- |-7 + 4| = - |-3| = - (3) = -3

Answer: -|-7 + 4| = -3

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Which expression represents 76 decreased by an unknown number?
DiKsa [7]
B.
76-g 
<span>76 decreased by an unknown number g </span>
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3 0
3 years ago
The product of two integers is 72. One number is two less than five times the other. Which of the following equations could be u
melisa1 [442]
Let the 2 integers be x and y.

Their product is 72, so we write: xy=72. (I)

One of them, say y, is 2 less than 5 times the other. We can write this as the equation:
                               y=5x-2. (II)

To find one of numbers, say x, we can substitute y with 5x-2, in the first equation:

xy=72,

x(5x-2)=72,

expanding the left hand side expression we get:

5x^2-2x=72.


Answer: C
8 0
3 years ago
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