Question

3(q-7)=27, what does q represent

Answer 1

Answer:

q stands for an unknown number (q is the variable)

Step-by-step explanation:

Step 1:

Use distributive property (multiply 3 to everything in the parenthesis)

3(q-7)=27

3q-21=27

Step 2:

Get the variable by itself. By doing that, you need to cancel out other numbers by using the opposite operation ( subtraction and addiction are opposites: multiplication and division are opposites). The number we need to get rid of is -27 so we need to cancel it out and make it worth zero so we add 21.

3q-21=27

   +21

Step 3:

Whatever you do to one side you need to do to the other.

3q-21=27

  +21  +21

(The simplify)

3q= 48

Step 4:

We need to get rid of the 3. When a variable (unknown number) in this example it's q, is next to a number, it means multiplication. If we want to get q by itself, we need to get rid of the three. So, we need to use division because it's the opposite operation of multiplication.

3q/3=48

Step 5:

Whatever you do to one side you need to do to the other.

3q/3=48/3

(Then simplify)

3/3 cancels out. Now q is by itself which is what we want. Now what is 48/3?

And that is your answer to what q equals. Hope this helped.