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

1 answer:

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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