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Hunter-Best [27]
3 years ago
8

Twice a number is equal to 35 more than 7 times the number. Find the number.

Mathematics
2 answers:
masya89 [10]3 years ago
7 0

Answer:

-7

Step-by-step explanation:

make an equation-

2x=35+7x

-5x=35

x=-7

nikklg [1K]3 years ago
7 0

Answer:

-7

Step-by-step explanation:

number - n

Twice a number - 2n

Seven times the number - 7n

2n = 7n +35

7n-2n = -35

5n = -35

n = - 7

Check:

2(-7) = 7(-7) +35

-14 = -49 + 35

-14 = -14 True

The number is (- 7).

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Answer:

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Step-by-step explanation:

First, know the following:

If the graphs intersect, there's only one solution.

If the graphs are parallel, there are no solutions.

If the graphs are the exact same line, there are infinite solutions.

For a):

Change the first equation into a linear one.

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Change the second equation into a linear one.

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Boom. You have two equations which are equal. As stated above, graphs on the exact same line have infinite solutions.

For b)

They are already in linear form so hurray.

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3 years ago
Which is the simplified form of the expression 12n-1/2(6n-4)
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<h3>Explanation:</h3>

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Step-by-step explanation:

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