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AysviL [449]
2 years ago
5

Combine like terms to find X 7x+=9x-3

Mathematics
1 answer:
blondinia [14]2 years ago
4 0

Answer:x = -1.5

Step-by-step explanation:

Simplifying

7x + -9x = 3

Combine like terms: 7x + -9x = -2x

-2x = 3

Solving

-2x = 3

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Divide each side by '-2'.

x = -1.5

Simplifying

x = -1.5

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Two numbers are the ratio of 2:7. their sum is 63. what is the larger number?
MariettaO [177]

Answer:

49

Step-by-step explanation:

step 1: Add the ratios 2:7 which is 2+7=9

step 2: divide the bigger ratio (7) by the total calculated in step 1 (9) and multiply by the total number given (63)....

step 3: we have 7/9×63 which is 49

therefore the bigger number is 49

8 0
2 years ago
Read 2 more answers
2x+2y=16 , 6x+4y=38 what is the value of x
ra1l [238]
1st equation—x, substitute y: 
<span>3x + 2(x + 3) = 16 </span>
<span>3x + 2x + 6 = 16 </span>
<span>5x = 10 </span>
<span>x = 2 </span>

<span>y in the above equation: </span>
<span>= 2 + 3 </span>
<span>= 5 </span>

<span>Answer: x = 2, y = 5</span>
5 0
3 years ago
You are selling tickets for a high school basketball game. Student tickets cost $3 and general admission tickets cost $5. You se
FinnZ [79.3K]

Answer:

5 stars? Answer down below

Step-by-step explanation:

a+b=350 => a=350 - b

3a + 5b = 1450

3(350-b)+b=1450

1050-3b+5b=1450

2b=400

b=200

a=150

3 0
3 years ago
Read 2 more answers
A painting measures b meters by 4 meters. a frame shop charges $10 per meter for a wooden frame. how much would it cost to buy a
hammer [34]

$ (20b + 80) is the cost to buy a frame for the panting given that measures b meters by 4 meters and charges $10 per meter for a wooden frame. This can be obtained by finding the perimeter of the painting and multiplying with the cost of wood per meter.

<h3>What is the cost of buying a frame for the painting?</h3>

Given that,

length of the painting (l) = b meters

width of the painting (b) = 4 meters

Perimeter of the painting = 2(l+b)

                                          = 2(b+4)

                                          = 2b + 8

Cost of the frame = (2b + 8)× $10 per meter

                             = $ (20b + 80)

Hence $ (20b + 80) is the cost to buy a frame for the panting given that measures b meters by 4 meters and charges $10 per meter for a wooden frame.

Learn more about finding cost of frame:

brainly.com/question/16757070

#SPJ4

4 0
2 years ago
Is the equation y=2/x linear?<br> Explain.
MAXImum [283]
It is not linear.
In a linear equation, you cannot divide by a variable.
Here you are dividing by x, so the equation is not linear.
4 0
3 years ago
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