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4 years ago

What is the answer to 2x-3=-5

Mathematics

2 answers:

Marizza181 [45]4 years ago

8 0

Answer:

x = -1

Step-by-step explanation:

2x - 3 = -5 (Given)

2x - 3 + 3 = -5 + 3 (Addition Property of Equality)

2x = -2 (Simplify)

$\frac{2}{2} = \frac{-2}{2}$ (Division Property of Equality)

x = -1 (Simplify)

inn [45]4 years ago

6 0

Answer:

x=-1

Step-by-step explanation:

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A number is doubled and then 1 is added to it. The answer is divided by 5 and then increased by 16. The final result is 18.

ipn [44]

So let's break down this sentence (Let n = unknown number):

"A number is doubled and then 1 is added to it"; Remember that double means multiplied by 2. With this sentence, we can determine that "2n + 1" is a part of the equation.
"The answer is divided by 5, and then increased by 16"; The "answer" they refer to is "2n + 1" from the prior sentence. Since this is divided by 5 and <em>then</em> added by 16, we can determine that $\frac{2n+1}{5}+16$ is a part of our equation.
"The final result is 18"; This means that the prior part of the equation is equal (=) to 18. <u>With this info, our full equation is $\frac{2n+1}{5}+16=18$ </u>

Now, let's solve our prior equation found in A. To solve for the unknown number, n, we need to isolate the variable onto 1 side of the equation. Firstly subtract both sides by 16 to cancel out the + 16 on the left side:

$\frac{2n+1}{5}=2$

Next, multiply both sides by 5 to cancel out the division on the left side:

$2n+1=10$

Next, subtract both sides by 1 to cancel out the + 1:

$2n=9$

Lastly, divide both sides by 2 to cancel out the multiplication:

$n=\frac{9}{2}\ \textsf{OR}\ 4.5$

<u>In short, the number is 9/2 or 4.5.</u>

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3 years ago

\boxed{ \rm{ \pink{ \displaystyle \: QUESTION....}}}

dezoksy [38]

Answer:

$\pink{ \rm{SOLUTION:-}}$

$\pink{ \rm{Here,}}$

$\boxed{162}$ can be a perfect square if the factor $\boxed{2}$ is a paired.

Hence, $\boxed{162×2}$ ,will be a perfect square.

$: \implies{324 = {3}^{2} \times {3}^{2} \times {2}^{2} }$

Hence,the square root is $3×3×2,i.e. 18$

${\rm{162 \: must \: be \: multiplied \: by \: 2 \: to \: make \: it \: a \: perfect \: square.}}$

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2 years ago

Read 2 more answers

The sum of four consecutive even integers equals seven times the greatest of the integers. Find the integers.

NeTakaya

Let the 4 integers be x, x+2 , x+4 , x+6 Then

4x + 12 = 7(x + 6)

4x + 12 = 7x + 42

3x = -30

x = -10

The integers are -10 -8 , -6, and -4 answer

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4 years ago

What is the median of the data?<br>30,29,16,11,16,20,21,12,13,15,15,23,30

tia_tia [17]

Answer:

Step-by-step explanation:

ascending order:11,12,13,15,15,16,16,20,21,23,29,30,30

number of terms =13

median=[(n+1)/2] th term

=[(13+1)/2] th term

=[14/2] th tem

=7th term

=16

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4 years ago

Carlos and Sophie, factored the trinomial –4x2 − 10x + 6. Sophie factored it as –2(2x − 1)(x + 3) and Carlos factored it as (x +

nydimaria [60]

Sophie factored it completely while Carlos did not.

Complete factoring is achieved when all factors other than monomial factors are prime factors. Carlos' (4x + 2) can still be factored into 2(x+1).

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3 years ago

What is the answer to 2x-3=-5​

What is the answer to 2x-3=-5