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suter [353]
3 years ago
12

The sum of a number and 2 is 6 less than twice that number

Mathematics
2 answers:
IgorC [24]3 years ago
7 0

Step-by-step explanation:

The first thing we have to do before we can actually do the problem is turn the words into a math equation.

If we use <em>x </em>as our "number," we see that "The sum of a number and 2" can also be written as <em>x</em>+2. The word "Is" almost always means (=), so now we have (<em>x</em>+2) = . The very last part, "6 less than twice that number," means 2<em>x - </em>6.

So, our whole equation is, (<em>x </em>+ 2) = (2<em>x </em>- 6), which simplifies to -<em>x </em>= -8, or

<em>x</em> = 8

True [87]3 years ago
3 0

Answer:

y = 8

Step-by-step explanation:

number = y

y + 2 = 2y - 6

y + 2 - 2 = 2y - 6 - 2

y = 2y - 8

y - 2y = 2y - 2y - 8

- y = - 8

- y × - 1 = - 8 × - 1

y = 8

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4 0
2 years ago
A^2-a+12=0 I need the roots
kumpel [21]

Answer:

a = 1/2 (1 ±sqrt(47))

Step-by-step explanation:

a^2-a+12=0

We will complete the square

Subtract 12 from each side

a^2-a+12-12=0-12

a^2-a=-12

The coefficient of a = -1

-Divide by 2 and then square it

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Add it to each side

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Take the square root of each side

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a =  1/2± i/2 sqrt(47)

a = 1/2 (1 ±sqrt(47))

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Answer:

Please provide the statements.

Step-by-step explanation:

6 0
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Step-by-step explanation:

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