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aalyn [17]
3 years ago
13

8+ what number = 3+8

Mathematics
2 answers:
Nitella [24]3 years ago
5 0

Answer:

3

Step-by-step explanation:

8 + 3 = 3 + 8

Order doesnt matter

Vlad [161]3 years ago
5 0
I hope the answer is 3
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10. 2x + 7y = 1<br> 2x - 4y = 12<br> Solve for y
adoni [48]

Answer:

The solution for y = -1.

Step-by-step explanation:

Given:

2x\ +\ 7y\ =\ 1    ....(1)

2x\ -\ 4y\ =\ 12  ....(2)

So, to solve for y, first we solve for x in equation (2):

2x-4y=12

⇒2x=12+4y

Dividing both sides by 2,

⇒x=6+2y            

Now, substituting the value of x  in equation (1):

2x+7y=1

⇒2(6+2y)+7y=1

⇒12+4y+7y=1

⇒12+11y=1

⇒11y=1-12

⇒11y=-11

Dividing both sides by 11,

⇒y=-1

Therefore, the solution for y = -1.

7 0
3 years ago
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Dmitriy789 [7]

Answer:

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Step-by-step explanation:

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4 0
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Which algebraic expression is equivalent to the expression below?
Anarel [89]

Answer:

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Step-by-step explanation:

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Then apply the exponent:

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