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Ainat [17]
3 years ago
5

If x=9 then 12+ x = ?

Mathematics
2 answers:
Anna11 [10]3 years ago
7 0

This is pretty easy once you know how to do it.

12+x=? We are given what X is.

So we just plug in X.

12+(9)=21.

21 is the answer

-Steel jelly.

Olenka [21]3 years ago
7 0

Answer:

21

Step-by-step explanation:

If X=9 then the equation is 12+9=21

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Find the value of 6x - 5 given that −17x -9 = 8
Nikitich [7]
Okay, So We Need To Solve For X, So We Can Solve The Expression:
6x - 5.

Lets Begin.

-17x - 9 = 8.

So, We First Need To Add 9 To Both Sides. 

-17x = 8 + 9

8+9 = 17.

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Divide.

-17x/-17 = 1x = x.

So:

X = 17/-17

17/-17 = -1

So:

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Now, Plug In The Value For The Expression.

6 * (-1) - 5

6 * (-1) = -6

(-6) - 5 = -11.

So, Our Value For 6x - 5 Is -11.

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3 years ago
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Anastaziya [24]

Answer:

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Step-by-step explanation:

The absolute value equation ...

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can be rewritten as two equations:

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The first solution is the smaller of the two, so we have ...

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Adding these two equations gives ...

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Subtracting the first equation from the second gives ...

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The the equation you seek is ...

  |x +17| = 15

7 0
3 years ago
Someone please help thanks
Harman [31]

Answer:

Don't take my word for it because I havent dont this in a while but I believe it is the top right

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