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3 years ago

Solve the following equation show your work 3{-x + (2x + 1)} = x - 1

Mathematics

2 answers:

Reika [66]3 years ago

4 0

Answer:

x = -2

Step-by-step explanation:

For this problem, we must simply solve for x. To do this, we will need equation operations, and the use of the distributive property.

Let's work this line by line until we have the value for x:

3{-x + (2x + 1)} = x - 1

3*-x + 3*(2x + 1) = x - 1

-3x + 6x + 3 = x - 1

3x + 3 = x - 1

2x = -4

x = -2

Now we can check our answer for x by plugging back into the original equation and see if the left hand side is equal to the right hand side:

3{-x + (2x + 1)} = x - 1

3{-(-2) + (2(-2) + 1)} ?= (-2) - 1

3{2 + (-4 + 1)} ?= -3

3{2 + (-3)} ?= -3

3{-1} ?= -3

-3 == -3

Thus, we have found the solution for x to be equivalent to negative 2.

Cheers.

natta225 [31]3 years ago

4 0

Answer:

Step-by-step explanation:

3{-x + (2x + 1)} = x - 1

<u>First solve the terms in the bracket first</u>

That's

3 (- x + 2x + 1 ) = x - 1

3( x + 1) = x - 1

<u>Expand the terms in the bracket</u>

We have

3x + 3 = x - 1

<u>Simplify</u>

3x - x = - 1 - 3

2x = - 4

Divide both sides by 2

We have the final answer as

Hope this helps you

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3 years ago

Surveys indicate that two-thirds of all voters in Ward 5 plan on choosing Spike Jones for commissioner. If there are 500 voters

olya-2409 [2.1K]

<u>Answer:</u>

333 people of ward 5 are going to be voting for Spike Jones.

<u>Solution:</u>

We have been given that two-thirds of all voters in Ward 5 plan on choosing Spike Jones for commissioner.

There are 500 voters in Ward 5.

Since 2/3 of all voters in Ward 5 are voting for Spike Jones the remaining 1/3 will not be voting for him.

To find out how many people in ward 5 are exactly voting for Spike Jones. We need to calculate how much is two thirds of 500 is.

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3 years ago

Factor the polynomial. 54c3d4 + 9c4d2 A. 9c3d2(d2 + 6c) B. 9c3d2(6d2 + c) C. 9c4d2(d2 + 6) D. 9c4d2(6d2 + 1)

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3 years ago

Read 2 more answers

What is the rule when you multiply several factors together? an even number of negative signs will result in

IrinaVladis [17]

⓵
When multiplying several factors together, an even number of negative signs will result in a positive answer.

↠ Because when you multiply two negative signs together, the negative signs turn into a positive sign, giving you a positive answer.

↠ If you have an even number of negative signs to multiply, then all your negative signs will be turned into positive signs, giving you a positive answer!

⓶
When multiplying several factors together, an odd number of negative signs will result in a negative answer.

↠ Because when you multiply a negative sign by a positive sign, the negative sign always wins, giving you a negative answer.

↠ If you har an odd number of negative signs to multiply, this means that once you are done multiplying all of the negative signs together except for the last one, you will be multiplying a positive sign with a negative sign.

↠ Here’s another way to see it : if you have 5 negative signs to multiply together, you will start by multiplying the first 2, which will give you a positive result. Then you will multiply the third and the fourth negative signs together, which will also give you a positive result. By that time, you will have two positive signs and one negative sign left, which means you will have no choice but to multiply a positive sign by the last negative sign, resulting in a negative answer!

I hope this helps! If you need a visual example, just tell me, it will be my pleasure! ☻

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3 years ago

A population of 120,000 grows 3% per year for 15 years, how much will the population be after 15 years?

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