Directions: Use the digits 1 to 9, at most one time each, to create an equation where x has a positive (or negative) value.

### Hint

### Hint

What makes a solution positive (or negative)?

Where do you want to put the larger (or smaller) numbers?

Where do you want to put the larger (or smaller) numbers?

### Answer

### Answer

There are many solutions that would work.

Example that would give a positive solution:

(1/2)(4x + 8) + 6x = 9x + 3 … here, x = 1

Example that would give a negative solutions

(1/3)(6x + 9) + 2x = 5x + 7 … here, x = -4

Another constraint or extension you could add is change the directions to say: “Use the digits 1 to 9, at most one time each, to create an equation where x has a positive (or negative) integer value.”

Source: Daniel Luevanos