algebra 1 algebraic expressions

Question

"fifteen decreased by the quotient of a number and 3 is 20"

"four less than the product of a number and 7 is eight more than that number"

Answer 1

Do it in steps:

Do the multiplication/division 1st, then the addition/subtraction/

Quotient of a number and 3 is x/3.

15 decreased by that quantity is 15 - x/3

Finally, set up the equation ("is" is the equal sign)

15 - x/3 = 20

The product of a number and 7 is 7x.

4 less than that qty is 7x - 4

After the "is" comes 8 more than that number (x + 8)

7x - 4 = x + 8