Simplify, justify your steps using the communitive, associative and distributive properties when necessary 3a + 2b + 5a

8a+2b

Step-by-step explanation:

you can add 3a and 5a to get 8a but cant do anything with 2b so it stays 2b. therefore it becomes 8a+2b. hope this helps!! :)

8a + 2b

Step-by-step explanation:

Step 1.  Combine your like terms( Like terms are the numbers with the same variable)

3a + 2b + 5a

3a + 5a= 8a

Step 2. Bring down the other term which is 2b( Do not add  8a + 2b because they are not like terms)

8a + 2b

and your done :)

Remeber: like terms have the same variable.

Example: 2a + 4a

$5.41

step-by-step explanation:

$20 - $14.51 = $5.49.

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.