Seven more than the product of a number and 5 equals 2 . use the variable c for the unknown number.

Equation: 5c + 7 = 2

Solution: The number is -1.

Step-by-step explanation:

The unknown number is c.

"the product of a number and 5" is 5c

"Seven more than the product of a number and 5" is 5c + 7

"Seven more than the product of a number and 5 equals 2" is 5c + 7 = 2

The equation is

5c + 7 = 2

To solve, we first subtract 5 from both sides.

5c + 7 - 7 = 2 - 7

5c = -5

Now divide both sides by 5.

5c/5 = -5/5

c = -1

The number is -1.

the answer is 62.8 cubic units