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Ostrovityanka [42]
3 years ago
6

Can you break down how this equation was solved?

Mathematics
2 answers:
Novay_Z [31]3 years ago
4 0
X + 2 = 5
____
4
~~~~~~~~~~~~~~~~~~~~~~~~ Multiply 4 on both sides:

x + 2 = 5
____
4
x4 x4
----------------
4(x+2) = 4(5) [DONT FORGET TO SIMPLIFY]

4x + 8 = 20
~~~~~~~~~~~~~~~~~~~~~~~~ Subtract 8 from both sides:

4x + 8 = 20
-8 -8
---------------------
4x = 12
~~~~~~~~~~~~~~~~~~~~~~~~ Divide by 4

4x = 12
÷4 ÷4
--------------
x = 3
dolphi86 [110]3 years ago
3 0
Yes! Let me help you!

Here is the original equation, lets solve this step-by-step

(x + 2)/4 = 5

Now, lets find out how. 

We must apply the inverse operation. 

4/2 is the reciprocal, so lets multiply that to both sides. 

4/2 = 2
5*4 = 20

4x + 8 = 20
      -8      -8            Subtract 8 from both sides. (Inverse operation) 

4x = 12
4x/4  = 12/4             Divide 4 by both sides (Inverse)

x = 12/4
x = 3           Simplified

Answer:  x = 3
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3 years ago
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6 0
3 years ago
-x -3y =18<br> x + 2y = -14
kherson [118]

Answer:

Step-by-step explanation:

The system of equations is expressed as

-x -3y =18 - - - - - - - - - - - - - -1

x + 2y = -14 - - - - - - - - - - - - - -2

We would eliminate x by adding equation 1 to equation 2. It becomes

- y = 4

Dividing the left hand side of the equation and the right hand side of the equation by - 1, it becomes

- y/ - 1 = 4/ - 1

y = - 4

Substituting y = - 4 into equation 1, it becomes

-x -3 × - 4 =18

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Subtracting 12 from the left hand side of the equation and the right hand side of the equation, it becomes

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8 0
3 years ago
Read 2 more answers
Can anyone solve this question?? plz help me tommorrow is my exam​
iVinArrow [24]

Answer:

Loss=Rs 80

Loss%=4%

Step-by-step explanation:

Cost price of trousers for Ujeli=Rs2000

Marked price for trousers =Rs 2400

Reduction of MP(take it as discounted) =20%

Selling price=MP-20%of MP=2400 - 20/100 * 2400 = 2400 - 480 = Rs 1920

Loss amount =CP - SP = 2000 - 1920 = Rs 80

Loss% =loss amt/CP *100 =80 / 2000 *100 =4%

Hope this helps!!

8 0
3 years ago
Which of the following verifies that AABC is similar to A DEF?
Archy [21]
Similarity cannot he determined but I’m not sure
8 0
3 years ago
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