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Maslowich
3 years ago
12

2x-y=3 and y=9-x in substitution methood​

Mathematics
1 answer:
raketka [301]3 years ago
4 0

Answer:

By adding equation we get:

2x-y=3

x +y=9

______

3x=12

x=6

Step-by-step explanation:

cut the positive and negative (y)

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Find the area of the figure <br>66in<br>33in<br>65in<br>66in​
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Answer:

9343620

Step-by-step explanation:

put commas where they need to be but all you have to do is multiply them together unless you're working with a rectangular prism just multiply by 2 then

7 0
3 years ago
The corner of a room where two walls meet the floor should be a right triangle. Jeff makes a mark along each wall. One mark is 9
Aleksandr [31]

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4 0
2 years ago
Read 2 more answers
yra solves the equation as shown. - 3(x+2) = 9 1. - 3x - 6 = 9 2. - 3x = 15 3. x = - 5 The property Tyra used in line 1 was the:
Molodets [167]

Answer:

Distributive property says that:

a\cdot(b+c) = a\cdot b + a\cdot c

Addition property of equality:

if x = y then x+z = y+z

Division property of equality:

if x = y then \frac{x}{z}=\frac{y}{z}

As per the statement:

Given the equation: -3(x+2)=9

Tyra solve this equation as shown below:

1.

-3x -6 = 9               [Distributive property]

2.

-3x = 15                 [Addition property of equality]

3.

x = -5                    {Division property of equality]

Therefore, the  property Tyra used in line 1 was : Distributive Property.

5 0
3 years ago
Read 2 more answers
Container X has 2 cups of water with 6 teaspoons of sugar. Container Y has 4 cups of water with 8 teaspoons of sugar. In which c
Harlamova29_29 [7]

Answer:

A) Container X

Step-by-step explanation:

X=2C:6S  ratio, now reduce amount but keep the same ratio

X=1C:3S  

Y=4C:8S  ratio, now reduce amount but keep the same ratio

Y=1C:2S

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6 0
3 years ago
17 more than some number is 57
anastassius [24]
17+x=57.
So, subtract 17 from both sides
X=40
6 0
3 years ago
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