Question

a=bc solve for c

Answer 1

What operation is there with b and c?

Answer 2

just solving for the indicated letter. solving formulas.

Answer 3

like y=5x solve for x the answer is y/5=x

Answer 4

I understand, but I'm trying to explain this to you so you'll understand how to do it in the future.

When you write bc, what operation is there between b and c?

Answer 5

Your example is a good example. When you write 5x, what operation is there between the 5 and the x?

Answer 6

What does 5x mean?
A) 5 + x
B) 5 - x
C) 5 * x
D) 5/x

Answer 7

divide

Answer 8

No. I think you are trying to be a step ahead.

5x means 5 * x
bc means b * c
In math, when we write a number and a variable (a letter) together with no operation, or we write two variables (two letters) together, the operation between them is multiplication.

Answer 9

In the example you gave, you have

y = 5x, solve for x

You want x alone, but x is being multiplied by 5. To get rid of the 5, we need to do the opposite operation to multiplication. The opposite of multiplying is dividing. We need to divide 5x by 5 to get rid of the 5. In an equation you must do the same operation to both sides of the equation, so we divide both sides of the equation by 5.

y = 5x now we divide both sides by 5:

y/5 = 5x/5, but 5x/5 is simply x, so we have

y/5 = x

Answer 10

Now we follow the same steps with your problem.

a = bc, solve for c

You want c alone. c is being multiplied by b. The opposite of multiply by b is divide by b, so we divide both sides of the equation by b:

a = bc

a/b = bc/b, but bc/b is simply c, so we write

a/b = c

c = a/b

This is the final answer.

Answer 11

Thanks so much!

Answer 12

You're welcome.