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Y_Kistochka [10]
2 years ago
12

What's the equivalent of the expression -2 (-x +5y ) + 3 (2x - 6y)?

Mathematics
jabraya
2 years ago
where's the answer
1 answer:
Anastasy [175]2 years ago
6 0

Answer:

Step-by-step explanation:

-2 (-x +5y ) + 3 (2x - 6y)

Opening bracket

= 2x - 10y + 6x - 18y

= 8x - 28y

= 4(2x - 7y)

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I need to know the answer please…
Triss [41]
Answer is a= 51/7 or 7 2/7

Step by step

-2/3 (a + 3) = 5/3a - 19

Distribute to resolve parentheses

-2/3a -2 = 5/3a - 19

Now to move variables to one side
Add 2/3a to both sides

-2/3a + 2/3a -2 = 5/3a + 2/3a -19

Combine like terms

-2 = 7/3a -19

Add 19 to both sides to isolate variable

-2 +19 = 7/3a -19 + 19

17 = 7/3a

Divide both sides by 7/3 to solve for a
(Remember when you divide a fraction, flip it and multiply.)

17 * 3/7 = a

51/7 = a

Picture attached shows steps in order, I think that is what you also needed?

5 0
1 year ago
I need the answer for my homework
sergij07 [2.7K]

Answer:

45 for 5 and 34 for 6.

Step-by-step explanation:

You are just subtracting by 11.

7 0
3 years ago
You ain't even here to party
katrin2010 [14]

Answer:

nice poem.excellence ndjdkdk

7 0
2 years ago
Mark buys a wooden board that is 7 1/2 feet long. The cost of the board is $0.50 per foot, including tax. What is the total cost
artcher [175]

Answer:

Total cost of Mark's board is $3.75.

Step-by-step explanation:

We are given the following in the question:

Length of wooden board =

=7\dfrac{1}{2}\text{ foot}

Unit cost of board = $0.50 per foot

Total cost of board =

=\text{Length of board}\times \text{Unit cost of board}\\\\=7\dfrac{1}{2}\times 0.50\\\\=\dfrac{15}{2}\times \dfrac{1}{2}\\\\=\dfrac{15}{4} = 3.75\$

Thus, total cost of Mark's board is $3.75.

7 0
2 years ago
An easy one for you<br> Find a number that is a multiple of 2,3,4,5 and 6
vlabodo [156]

Answer:

60 that's the least common multiple

Step-by-step explanation:

7 0
3 years ago
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