I can't get this Algebra Question 4(x-9)=8?

Question

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Answer 1

First you have to multiply the 4 out to the x and 9. So you get 4x - 36 = 8...Then you have to work on getting the x alone. So first add 36 to each side...So you get 4x=44..Then you need to divide each side by the 4..so you get x=11....When you do these problems, you first need to make sure everything is done as far as you can ie: multiply out or add and subtracting..Then you just have to work on getting your variable alone. If you are still unsure of yourself, check your answer. Go back to your original problem, and put 11 in for x. Then figure the equation out. Do you get 8? If so then it is correct. You can do this for any of the equations.

Answer 2

4(x-9) = 8

Your ultimate step is to isolate the x, i.e. leave x all by itself. That's always the main goal in algebra.

Your first step is to distribute the 4 over the brackets. That means you'll multiply 4 with the x, and then multiply the 4 with the -9, to get new values. 4 times x is 4x, and 4 times -9 is -36, so the equation becomes like so:

4x - 36 = 8

Now, add 36 to both sides of the equation because we want to get rid of the -36 on the left hand side.

4x - 36 + 36 = 8 + 36

Note that -36 + 36 = 0, and 0 plus anything is 0, so we can effectively remove those values. We can also add the right hand side normally, to get:

4x = 44

Now, divide both sides by 4, because we want to leave the x by itself.

4x/4 = 44/4

The 4s will cancel each other out, and the right hand side is equal to 11, so

x = 11

Answer 3

4(x-9)=8

4x-36=8 Use distrubutive property. This means that you multiply 4 by x which gives you 4x and 4 by -9 which gives you -36.

4x=44 Add 36 to both sides

x=11 Divide each side by 4 and the answer is 11

Answer 4

Distribution:
4(x-9)=8 => 4x - 36 = 8
4x = 8 + 36
4x = 44
x = 44 : 4
x = 11
Solution: x = 11
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Answer 5

Hi Roxy,

I won't do it for you but will give you a hint.

What do you do with any integer outside the paren?

Say maybe MULTIPLY to remove the paren? That would remove the paren and give you 4x-36=8

To do algebra you have to balance the equation and that means doing the same operation to both sides.

Think now. If you add 36 to both sides what do you get (if you add 36 to a -36 that equals zero on the left side and gives you 8+36 on the right or 42. Giving you 4x=42, now solve for x.

Good luck,
Jacques

Answer 6

x=11

Answer 7

4(x-9)=8 you multiply 4 by x and 4 by 9
4x-36=8 now you add 39 out from 8 so 4x is by its self
4x= 44 divide 4 into 47 and that is your answer.
x=11

Good luck with math I hope i have helped.

Answer 8

4(x-9)=8
multiply it out to 4x-36=8
add 36 to both sides 4x-36+36=8+36
4x=44
divide both sides by 4. 4x/4= x & 44/4=11
x=11
Check answer 4(11-9)=8
4*2=8

Answer 9

Your question is 4(x-9)=8.

When you take 4 to Right hand side...it will be

x-9=(8/4)

But as 8/4=2,

we have equation as
x-9=2.

When we take 9 to Right hand side to get value of X,minus sign turns positive,
so equation becomes

x=9+2,
x=11...Thus equation solved !!

Answer 10

What we know here is that both sides of the equation must be equal.
Anything outside a bracket is a multiple for whatever is in the bracket.
We therefore know that what is in the bracket must be multiplied by 4 to make 8.
In the bracket must be 2.
What number can have 9 removed to make 2?
The answer is x=11
Hope this helps