Need help with math homework. Solve for q. 4/q + 5 = 12?

Answer 1

4/q = 12 - 5
q = 4/7

Answer 2

Disregard the previous responder's answer. Q is NOT 8. Ok, here's how you do this. When you're trying to solve an equation, first figure out what 4/q is equal to. Do this by taking 12 and subtracting 5. That makes the equation 4/q = 7. Now, solve for q.

To do this, since q is the denominator, you need to flip the denominator and multiply it by the numerator. In this case, it would be 4 * 1/q = 7. Now one thing you know already is that q HAS to be a fraction, because you can't multiply 4 by any whole number and get 7. So now you have 4/q = 7. Since a fraction is just another form of division, you can switch the q and the 7 and you get 4/7 = q. And that IS your answer.

Answer 3

simplest way is to get rid of the fractions through multiplying through a fabricated from all denominators (No, you *do not * ought to locate the Least worry-free Denominator -- that can be a waste of attempt and time) seem on the first equation. The denominators are 6,2,and four. 6x2x4 = 40 8, so multiply both side through 40 8. -5/6 x 40 8 x q = -40q -(q - (a million/2))x 40 8 = -48q + 24 a million/4(q + a million)x 40 8 = 12q + 12 Then - 40q -48q + 24 = 12q + 12 Divide through 4 -10q - 12q + 6 = 3q + 3 -22q + 6 = 3q + 3 3 = 25q q = 3/25 or 0.12 I checked this with a calculator. Marley's answer did not examine wisely. i imagine i'm properly.

Answer 4

First we have to restrict the domain, q is an element of all real number except zero, since any number didvided by zero is undefined

Then, we will take 5 to the other side, getting

4/q=12-5.........4/q=7, then following the criss cross rule

7q=4, q= 4/7

So the answer is 4/7

Hope I helped

Answer 5

this is really basic math, just subtract the 5 from both sides, giving you 4/q = 7

then multiply the inverse of 1/q, which is q, by both sides, cancelling out the q on the left and giving you 4 = 7q

divide 7 from both sides, giving you an answer of q = 4/7

Answer 6

ok multiply by 1/4 then u get q + 5 = 12 X1/4 which is 3
q=8

Answer 7

4/q+5=12 ||-5 both sides
4/q=7 || q times both

(4*q)
------- = 7*q
q

since left side has (4*q) up it can also be written :

q
-- *4 (and q/q is 1)
q

we have:
1*4 = 7q || divided by 7
4/7 = q
q = 4/7 (= 0,571..)

Answer 8

4/q + 5 = 12

subtract 5 from both sides

4/q = 7

multiply both sides by q

4 = 7* q

divide both sides by 7

4/7 = q

Answer 9

Two ways to do it. (Many, but these two are the best.)

A. Figure out what 4/q is. Then figure out what q/4 is. Then figure out what q is.

B. Multiply both sides by q. Collect terms, and you eventually get 7q-4 = 0 or, equivalently, 7q=4. Proceed from there.

Answer 10

4/q + 5 - 5 = 12 - 5
4/q = 7
q (4/q) = 7*q
4 = 7q
4/7 = (7q)/7
4/7 = q