What is the definition of a positive number?

A positive number is any number greater than zero. 
For Example: 3, 7.5,100 etc.

What is the definition of a negative number?

A negative number is any number less than zero.

For Example: -1, -5.5, -10 etc.

How do you add a positive number to a negative number?

To add a positive number to a negative number, subtract the absolute value of the negative number from the positive number. 
For Example, 
5 + (-3) = 5 - 3 = 2.

What is the result of multiplying two negative numbers?

The product of two negative numbers is positive. 
For Example, 
(-2) x (-3) = 6.

Solve the Equation: 

-3x = 5

- 3x = 5
Divide both the slides by -3,
Now we can see that 

x = 5/-3

What is the result of subtracting a negative number from a positive number?

Subtracting a negative number is the same as adding its positive counterpart. 

For Example, 

4 - (-2) = 4 + 2 = 6

If x is a positive number and y is a negative number, What is the result of x + y?

The result will depend on the absolute values of x and y. 

If |y| < x, the result is positive. 

If |y| > x, the result is negative.

What is the absolute value of a negative number?

The absolute value of a negative number is its positive counterpart. 

For Example, 
The absolute value of -7 is 7.

Evaluate: -5 + 3 - 4.

(Hint: Combine the numbers step by step)

As the statement is  
-5 + 3 -6

First, calculate 

-5 + 3 = -2. 

Then, 
-2 - 4 = -6. 

So, the result is -6.

What happens to the product of a positive number and a negative number?

The product of a positive number and a negative number is negative. 

For Example, 

4 x (-3) = -12.

If x = -2 and y = 3, what is the value of xy?

The value of xy is 

(-2) x 3 = -6

What is the rule for multiplying two positive numbers?

The product of two positive numbers is always positive. 

For Example, 

4 x 5 = 20

What happens when you subtract a negative number from a positive number?

Subtracting a negative number is equivalent to adding its absolute value.

For Example, 

5 - (-3) = 5 + 3 = 8

How do you determine the sign of the product of multiple numbers?

The product is positive if there is an even number of negative factors and negative if there is an odd number of negative factors. 

For Example, 

(-2) x (-3) x 4 = 24 which is positive and 

(-2) x 3 x (-4) = 24 which is also positive.

What is the result of the expression: -7 + 9?

The result is 2, 

Since adding 9 to -7 gives: -7 + 9 = 2