I need some help with variables.

Question

So, I m in an online coding class and I have been stumped by this challenge.

Here are my starting variables:

 

 

var x = 5;

var y = 11;

var z = 4;

 

I need my output to be:

x = 2

y = 6

z = 8

 

There are some guidelines though:

- I am only allowed to add lines of code that re-assign values of variables provided.

- I am only allowed to use assignment (=) and arithmetic operators (+ - * /).

- I am NOT allowed to type or introduce any numbers.

 

*I would ve got this right away, but I am NOT allowed to assign a new variable. :/

 

Can someone please help?

Answer 1

We can get y to equal 6 by subtracting x from the current value of y:     y-=x;

Now we can get x to equal 2 by subtracting the value of z from the new value of y:     x=y-z;

We can then get z to equal 8 by adding the new values of x and y together:     z=x+y;