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Nostrana [21]
3 years ago
11

Five is seven more than the product of two and a number. what is the number

Mathematics
1 answer:
ss7ja [257]3 years ago
3 0
Let n = the unknown number. 

The phrase "five is" tells us to start the equation with "5 ="

"Seven more than" becomes "7 +"

"The product of two and a number" is 2n or (2 * n)

Put it all together and solve:
5 = 7 + 2n

5 = 7 + 2n
5 - 7 = 2n
- 2 = 2n
Divide each side by 2 to isolate the variable

- 1 = n

Your number is - 1
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