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agasfer [191]
3 years ago
12

A number added to itself equals 5 less than the number

Mathematics
1 answer:
Nastasia [14]3 years ago
4 0

Answer:

The number is -5.

Step-by-step explanation:

x+x=x-5

2x=x-5

x-2x=5

-x=5

x=-5

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Solve the system by the substitution method.
Ghella [55]

Answer:

A) The solution set is (6,-8).

Step-by-step explanation:

3x - y = 26

-3x       - 3x        Subtract 3x from both sides

-y = -3x + 26     Divide both sides by -1

y = 3x - 26

Now plug this into 7x + 8y = -22 to solve for x

7x + 8(3x - 26) = -22        Distribute

7x + 24x - 208 = -22       Combine like terms

31x - 208 = -22

     + 208    + 208            Add 208 to both sides

31x = 186                           Divide both sides by 31

x  = 6

Plug this into y = 3x - 26 to solve for y

y = 3(6) - 26           Multiply

y = 18 - 26              Subtract

y = -8

If this answer is correct, please make me Brainliest!

8 0
3 years ago
If g(x)= 2x^4+3x^3-x^2, find g(-1)
Nostrana [21]
When you have a function of g(-1) you first plug in -1 to all x's then you solve it.

Answer: x=0
7 0
3 years ago
Matte is make a collar for a dog she need to buy some chain and clasp and a name tag she .want buy the collar that 40 centimeter
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4 0
2 years ago
The length of a rectangle is twice the width. the perimeter is 32 cm more than the width. find the dimensions of the rectangle.
SCORPION-xisa [38]
Width: x
Length: 2x
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32 cm more than width means x+32
6x=x+32
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Answer:

So we can use geometric progression each time multiplying by 0.0475

so thats (275*0.0475)*10

So that means that we would get

130.625 so we subtract that from 275

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That would be

Step-by-step explanation:

4 0
3 years ago
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