Question

if you are given the formula a=bc/d. how do you isolate the variable?

Answer 1

Which variable?

Answer 2

to move "a" to the other side, multiply both sides by 1/a (or same thing, divide both sides by a)

to move "d" to the other side, multiply both sides by d

Answer 3

so pick the variable you want to isolate. Move the other variables to the other side using one or the other of the two rules.

Answer 4

@Diyadiya oh sorry...i ment the variable B

Answer 5

to solve for b, do it one step at a time. move d to the other side. Can you do that?
(mult both sides by d)

Answer 6

Yes, as @phi said first multiply both sides by d

Answer 7

alright thanks

Answer 8

@Diyadiya @phi if your data changes,do youu have to change your formula?

Answer 9

The idea stays the same. What did you get after multiplying both sides by d?

Answer 10

well im supposed to have the equation a=bc over d...........and isolate the variable B

Answer 11

to multiply both sides by d write down d next to each side
da = bc d/d
but d/d (d divided by d)=1 so
da=bc
now divide both sides by c

Answer 12

I can give you an example.

\[\Large x= \frac{3a}{y}\]and you have to isolate y
so we multiply both sides by y\[\Large x \times y= \frac{3a}{y} \times y\]\[\Large x \times y= \frac{3a}{\cancel{y}} \times \cancel{y}\]\[\Large x \times y = 3a\]Now divide both sides by x \[\Large \frac{x \times y}{x} = \frac{3a}{x}\]\[\frac{\cancel{x} \times y}{\cancel{x}} = \frac{3a}{x}\]\[\Large y = \frac{3a}{x}\]