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Julli [10]
2 years ago
11

5x - 2y = 142x + 2y = 14[by elimination]​

Mathematics
1 answer:
kenny6666 [7]2 years ago
4 0

Answer:

x=4, y =3

Step-by-step explanation:

5x - 2y =14

2x +2y =14

Remains

5x +2x =14+14

7x=28

x=28 :7

x=4

Now we go to the first equation

5×4 - 2y =14

20 - 2y =14

-2y =14-20/×(-1)

2y =6

y=6 :2

y=3

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Which property is demonstrated by the equation (5 + a) + 3 = (a + 5) + 3?
sineoko [7]

Answer:

Communitive Property

Step-by-step explanation:

Commutative property = 2 + 3 = 3 + 2 or 2(3) = 3(2)

Associative Property = (2 x 3) 5 = 2 (3 x 5) or (2 + 3) + 5 = 2 + (3 + 5)

Inverse Property = 2 + (-2) = 0 or (2/1)(½) = 1

Basic Definitions:

<u><em>Commutative Property</em></u> - Gives you the ability to switch the order of the numbers in an expression.

<u><em>Associative Property</em></u> - Let's you move the parenthesis in an expression but not the numbers.

<u><em>Inverse</em></u> - Uses numbers like 0 and 1.

Using these basic definitions and examples, we can summarize that the best answer would be <u>Communitive Property</u>

<u></u>

4 0
3 years ago
4th grade math the 8s in 88,000 answers
Tomtit [17]
Explain more are you trying to figure out how much the 8s are worth in the number
7 0
3 years ago
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Neporo4naja [7]
The table is times 16      
5 0
3 years ago
How do I solve for x? <br>10x+6=8-2(x+6)
Neporo4naja [7]

1. 10x+6=8-2(x+6)

2. 10x+6=6(x+6)

(distribute the 6)

3. 10x+6=6x+36

(Move the 6x to the other side by subtracting)

4. 4x+6=36

(Move the 6 to the other side by subtracting)

5. 4x=30

(divide)

x=7.5


Hope this helped! :)

6 0
3 years ago
Please help me answer this I'm having trouble
Alex777 [14]
The first one and the last one are correct.
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