Question

Simplify 2x - 4 |-3y| for x = 7 and y = 3

please show me how you did it

Answer 1

The idea of a variable is very important to understand as letter that can be replaced by a number, right?

Answer 2

Here they are giving you the numbers to substitute for the letters "x" and "y".

Answer 3

differentiate or integrate?

Answer 4

Once you replace those letters with the given numerals you get what is known as a numerical expression that you can simplify.