Answer:
10n - 7
Explanation:
Choose a variable for the number
let "n" be the number
Take apart the statement in the question. Convert each part to algebraic form (numbers and symbols)
"Seven less than" -7
"the product of a number and 10" n*10 or 10n
Put the parts together
10n - 7
This is an expression, which means there is no equal sign. When there is an equal sign, it's an equation.
You cannot solve an expression, unless given the missing number.