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masha68 [24]
3 years ago
11

The sum of a number and 7 is the same as double the number increased by 3

Mathematics
2 answers:
dimulka [17.4K]3 years ago
8 0
The statement above is the same as the mathematical expression below...

x + 7 = 2x + 3

We want to solve for x in these types of problems. To do so, we must get all of the "x"s on one side of the equal sign and the constants on the other.

7 - 3 = 2x - x
4 = x

Our answer is x = 4.
koban [17]3 years ago
4 0
So, let’s represent the number as n:
n+7=2n+3
Subtract both sides by 3:
n+4=2n
Now by n:
2n=4
Divide:
n=2
The number is 2
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The number -2.34 can be found between which two integers?<br> (Full question above)
Orlov [11]

Answer:

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Step-by-step explanation:

imagine a number line

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7 0
4 years ago
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Having trouble with add or subtracting the given polynomials
Bumek [7]

7.

(2b^2+7b^2+b)+(2b^2-4b-12)

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8.

(7g^3+4g-1)+(2g^2-6g+2)

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3 0
3 years ago
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Convert 110 km/myr (kilometers per million years) to cm/yr (centimeters per year)
jenyasd209 [6]

Answer:

110\ \text{km/myr} =11\ \text{cm/yr}

Step-by-step explanation:

To find : Convert 110 km/myr (kilometers per million years) to cm/yr (centimeters per year) ?

Solution :

Using metric conversions,

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1 meter = 100 centimeter

So, 1 kilometer = 100,000 centimeter

and 1 million year = 1,000,000 year

1\ \text{km/myr} =\frac{100000}{1000000}\ \text{cm/yr}

1\ \text{km/myr} =0.1\ \text{cm/yr}

So, 110\ \text{km/myr} =110\times 0.1\ \text{cm/yr}

110\ \text{km/myr} =11\ \text{cm/yr}

Therefore, 110\ \text{km/myr} =11\ \text{cm/yr}

6 0
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Y_Kistochka [10]

Answer:

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Step-by-step explanation:

3 0
3 years ago
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