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kogti [31]
3 years ago
7

Please help step by step!!!

Mathematics
2 answers:
LenKa [72]3 years ago
8 0

\huge \boxed{\mathfrak{Question} \downarrow}

  • What's the solution of 9 • x = - 63 ?

\large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}

\sf \: 9 \cdot x = - 63

Divide both sides by 9.

\sf \: x=\frac{-63}{9}  \\

Divide -63 by 9 to get -7.

\boxed{ \boxed{ \bf \: x=-7 }}

Lesechka [4]3 years ago
5 0

Answer:

-7

Step-by-step explanation:

We first are going to flip the equation around.

So instead of 9 times x = -36 we'll do 36/9. 36/9 = -7.

Also you will kind of know it will be a negative number from the beginning since it's -36.

I don't know if that last part makes any sense, but I hope this helps you!

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The equation 2x + 4k − 9 = kx − k + 1 is really a family of equations, because for each value of k, we get a different equation
Olegator [25]
You haven't shared "the given value of x," or, if you have, you haven't drawn attention to it.

Just suppose we were to choose x = 4 as a possible solution and then try to find a value of the parameter k that would make x = 4 an actual solution.

2(4) + 4k - 9 = (4)(4) - (4) + 1

Then 8 + 4k - 9 = 16 - 4 + 1, or       4k - 1 = 13.  Then 4k = 14, and k = 14/4, or (after reduction)  k = 7/2   

If the parameter k equals 7/2, then x = 4 is a solution to the given equation.

To check this out further, start with the proposed solution x = 5 and find k.
3 0
4 years ago
Multiply.<br> (-6/5) (-8/9)
vichka [17]

Multiply straight across:

-6 x -8 = 48

5 x 9 = 45

Simplify:

48/45 = 16/15

16/15, or 1 1/15 is your answer

hope this helps


5 0
3 years ago
Read 2 more answers
Ejemplo: Martin necesita sembrar unos terrenos de cultivo. Ha gestionado un
AveGali [126]

Answer:

Step-by-step explanation:

10

8 0
3 years ago
Find the difference.<br> 9 - (-10)
Salsk061 [2.6K]

Answer:

19

Step-by-step explanation:

9 - (-10) = ?

To do this, we need to use the additive inverse and the method of K(eep)F(lip)C(hange)

So, the problem becomes: 9 + 10 = ?

Do the math, and you get your answer of 19.

8 0
3 years ago
Answer it plz! I need help!
Ganezh [65]

Answer:

i think it is A

Step-by-step explanation:

i hope this helped!

p.s it would be cool if you gave me brainliest.

7 0
3 years ago
Read 2 more answers
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