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s344n2d4d5 [400]
3 years ago
8

How do you solve 5x+7=3x-5

Mathematics
2 answers:
olya-2409 [2.1K]3 years ago
5 0
Subtract 3x from both sides then isolate the variable.
Sooooo...
5x+7=3x-5
2x+7=-5
2x=-12
x=-6
xenn [34]3 years ago
4 0
5x + 7 = 3x - 5

First, subtract 3x from both sides.
5x = 7 - 3x = -5
Second, keep the 7 and subtract the 5x - 3x to get 2x.
2x + 7 = -5
Third, subtract the 7 from both sides.
2x = -5 - 7
Fourth, simplify -5 - 7.
2x = -12
Fifth, take the 2 and divide it on both sides, leaving just x in its place.
x =  -\frac{12}{2}
Sixth, since 6 goes into 2 to get 12, simplify the fraction to 6.
x = -6

Answer: x = -6

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HELP!!!!!!!!! I don't understand this question. Does anyone know how to do it?
Semenov [28]

Answer:

y = 8(.88)^x

y = 4.221855 for the fifth reduction

Step-by-step explanation:

We can use the formula

y =ab^x

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5 0
3 years ago
set up and solve a system of equations to solve the problem The school band sells carnations on Valentine's Day for $3 each. It
sasho [114]

Answer:

Number of carnations = 6

Step-by-step explanation:

Let the number of carnations school band buys from florist be x.

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Total cost for x number of carnations = $0.50x

Also , delivery cost = $15

So, total cost on buying x number of carnations from florist = 0.50x + 15

Now,

School band sells carnations at a price of $3 each.

Total revenue they get get after selling x number of carnations = $3x

We need to find that , when will the cost of the carnations be equal to the revenue from selling them.

i.e 3x = 0.50x + 15

or 3x - 0.50x = 15

or 2.50x = 15

or x = \frac{15}{2.50}

or x = 6

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4 0
3 years ago
How many perfect squares lie between 10 and 64 how do you know?
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4, (16,25,36,49)

5 including the number 64
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4 years ago
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