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Strike441 [17]
4 years ago
5

- 2 + 5x - 7 = 3x – 9 + 2x

Mathematics
2 answers:
kiruha [24]4 years ago
7 0

Answer:

0 = 0

Step-by-step explanation:

2+5x−7=3x−9+2x

Step 1: Simplify both sides of the equation.

−2+5x−7=3x−9+2x

−2+5x+−7=3x+−9+2x

(5x)+(−2+−7)=(3x+2x)+(−9)(Combine Like Terms)

5x+−9=5x+−9

5x−9=5x−9

Step 2: Subtract 5x from both sides.

5x−9−5x=5x−9−5x

−9=−9

Step 3: Add 9 to both sides.

−9+9=−9+9

0=0

Art [367]4 years ago
4 0

Answer:

10x -18

Step-by-step explanation:

add the same things together

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A laptop was originally sold for $975. The laptop is now on sale for $828.75.The percent markdown must have been...
Sonja [21]

Answer:

15% markdown

Step-by-step explanation:

To find the percent markdown

Take the original price minus the new price

975-828.75

146.25

Divide by the original price

146.25/975

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Change to percent form

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3 years ago
Was it evaluated correct?<br>explain your reasoning​
natali 33 [55]

Answer:

Yes

Step-by-step explanation:

Yes.  They did exponents and grouping symbols first, then multiplication and division left to right.  Addition came before multiplication and division because it was inside a grouping symbol.

8 0
3 years ago
The length of a rectangle if the length is twice the size of the width increased by one
Alenkasestr [34]
The correct question is 
<span>The length of a rectangle if the length is twice the size of the width increased by 1 is it one of the following answers:
A) l= 2w-1
B) l= 2w+1
C) l= 3w
D) none of the choices given

Let
l--------------> </span>length of a rectangle
w-------------> width of a rectangle

we know that
if the length is twice the size of the width increased by 1
l=2w+1

the answer is the option B) l= 2w+1

3 0
4 years ago
At noon, a submarine was located at 5 12 meters below
Cerrena [4.2K]
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3 years ago
Please answer the following​
nataly862011 [7]
<h2>Question :</h2>

<h3>Solve the proportion : </h3>

\sf \dfrac{24}{2}  =  \dfrac{t}{7}

<h2>Answer :</h2>

\sf  \dashrightarrow \:\dfrac{24}{2}  =  \dfrac{t}{7}

\sf  \dashrightarrow \: \cancel{\dfrac{24}{2}}  =  \dfrac{t}{7}

\sf  \dashrightarrow \:12  =  \dfrac{t}{7}

\sf  \dashrightarrow \:12 \times 7 =  t

\sf  \dashrightarrow \:84 =  t

\sf  \dashrightarrow \:t =  84

Hence, The solution is \large  \underline{\boxed{\sf  t = 84}}

8 0
3 years ago
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