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Korolek [52]
2 years ago
6

-9(x+8)+81=13-10x what does x equal?

Mathematics
2 answers:
ankoles [38]2 years ago
7 0

The answer to the problem is x= -4

Aleks [24]2 years ago
5 0

Answer:

x = 5

Step-by-step explanation:

Use the distributive property.

-9x + -72 + 81 = 13 - 10x

Add -72 and 81.

-9x + 8 = 13 - 10x.

Cancel out the -9x

-9x + 9x + 8 = 13 - 10x + 9x.

8 = 13 - x

8 - 13 = 13 - 13 - x

-5 = -x

We can't have a negative x so negate the whole equation.

x = 5

Hope this helps

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Since the price of each item is $0.77, for one item you will pay $0.77. (Is that a surprise?)

Then for two items, you will pay $0.77 for each one, or $0.77 + 0.77 = $1.54. You can also compute this by making use of the fact that multiplication is a shortcut for repeated addition. The price can be found by $0.77×2 = $1.54 = f(2).

Similarly, for 3 items, you can add $0.77 three times: $0.77 + 0.77 + 0.77 = f(3), or you can use multiplication: $0.77×3 = $2.31 = f(3).

a) Our table looks like
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  (0, 0)
  (1, 0.77)
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  (3, 2.31)

b) By now, I'm sure you have realized that to find the price of x items, you multiply 0.77 by x.
  f(x) = 0.77x
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2 years ago
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Step-by-step explanation:

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Show and explain how replacing one equation by the sum of that equation and a multiple of the other produces a system with the s
My name is Ann [436]
First, let's multiply the first equation by two on the both sides:
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Now, the system is:
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After adding this up in the column:
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oksano4ka [1.4K]

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Step-by-step explanation:

The pattern in the question can be described as follows;

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Figure 3 = (5 + 2 + 2) squares boxes

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