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Artist 52 [7]
4 years ago
12

-(-(-)(-)(-10x))=-5 solve for x

Mathematics
1 answer:
ElenaW [278]4 years ago
6 0
-(-(-)(-)(-10x)) = -5

We need to cancel out the negatives, so we need to simplify this.

To make things a bit easier for you, we can begin by counting out how many negatives we have. After counting, you should have a negative number count of 5. However, one of the negatives is apart of (-10x) so we'll have 4 negatives and then an extra negative in with 10x.

Remember that "-" could also be looked at as "-1."

So, if we break this down into smaller parts and substitute "-" into "-1," then this'll look like this :

-1 × -1 × -1 × -1 × (-10x) = -5

Remember that a negative times a negative is always a positive.

So, since there are four negatives, then you just multiply it all together.

This results in 1 × (-10x) = -5

Simplify.

-10x = -5

Now, you simply divide both sides by -10.

-10x ÷ -10 = -5 ÷ -10

Simplify.

x = 1/2

~Hope I helped!~


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The sum of two numbers is 44. The second number is 4 less than three times the first number. Let x represent the first number an
fenix001 [56]

The equation x + (3x - 4) = 44 should be at the top of the last column

Step-by-step explanation:

The given is:

  • The sum of two numbers is 44
  • The second number is 4 less than three times the first number
  • x represent the first number and let y represent the second number

We need to find that If the table will be used to guess and check, what should the equation be at the top of the last column

∵ The 1st number is x

∵ The 2nd number is y

∵ The sum of the two numbers is 44

- Add x , y and equate the sum by 44

∴ x + y = 44 ⇒ (1)

∵ The second number is 4 less than three times the first number

- That means y is less than 3 times x by 4

∴ y = 3x - 4 ⇒ (2)

Now we have a system of equation

Substitute y in equation (1) by equation (2)

∵ x + (3x - 4) = 44 ⇒ (3)

- Add like terms in the left hand side

∴ 4x - 4 = 44

- Add 4 from both sides

∴ 4x = 48

- Divide both sides by 4

∴ x = 12

- Substitute the value of x in equation (2) to find y

∵ y = 3(12) - 4

∴ y = 36 - 4 = 32

∴ The two numbers are 12 and 32

The equation that can used in the table of guess and check is the equation after substitute the value of y by x, equation (3)

∴ The equation of the last column is x + (3x - 4) = 44

- Guess that x = 10, then 10 + (3 × 10 - 4) = 10 + 26 = 36 less than 44

- Guess that x = 11, then 11 + (3 × 11 - 4) = 11 + 29 = 40 less than 44

- Guess that x = 12, then 12 + (3 × 12 - 4) = 12 + 32 = 44

- Then x = 12 and y = 32

The equation x + (3x - 4) = 44 should be at the top of the last column

Learn more:

You can learn more about the system of equations in brainly.com/question/2115716

#LearnwithBrainly

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The middle number is -6 and the last number is 8.

Factoring means we want something like

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Which numbers go in the blanks?

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