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3 years ago

The sum of 5 times a number and minus −2, plus 7 times a number

Mathematics

1 answer:

Olenka [21]3 years ago

6 0

Answer:

12x + 2

Step-by-step explanation:

Let the number be represented by x.

Then five times the number = 5*x

Seven times the number = 7*x

Sum of 5 times the number minus -2 = $5*x - (-2)$ = $5x +2$

Adding seven times the number to this expression yields, $5x+2+7x$

$= (5+7)x+2$

$= 12x+2$

So the simplified expression corresponds to 12x + 2.

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2 years ago

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3 years ago

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2 years ago

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Answer:

Step-by-step explanation:

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The sum of 5 times a number and minus −​2, plus 7 times a​ number

The sum of 5 times a number and minus −2, plus 7 times a number