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Novosadov [1.4K]
3 years ago
11

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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