Question

Solve 9c + 4 = -23.

Answer 1

what is 13-23

Answer 2

10

Answer 3

-3
3
-2.1
4

Answer 4

Where did you get 13-23?

Answer 5

@lauren.ascough

Answer 6

For this you need to isolate your variable (c)

Answer 7

So first, you would subtract 4 from both sides.

Answer 8

So you would have 9c = -27

Answer 9

Then divide both sides by 9.

Answer 10

3

Answer 11

A positive number divided by a negative number is a negative number.

Answer 12

@goose i ask you another question

Answer 13

Sure,

Answer 14

Solve 3x - x + 2 = 12

Answer 15

Combine like terms first, so 3x - 1x is 2x, solve from there, 2x + 2 = 12. subtract 2 from both sides, you have 2x = 10.

Answer 16

You want base value of x, so divide both sides by 2.

Answer 17

5

Answer 18

Yup! :)

Answer 19

@goose i still don't understand to do it by myself

Answer 20

Solve 4(x + 1) + 8 = 24.

Answer 21

like can you help me

Answer 22

Okay, you know how to distribute right?

Answer 23

mmmmm

Answer 24

Well Distribute your 4 to each number in the parentheses, give me your new equation,
I'll do my best to teach you from there.

Answer 25

so its 4x + 5

Answer 26

in the parenthesis

Answer 27

No, you wouldn't add 4 to the +1, you'd multiply, and 4 x 1 is 4.

Answer 28

why

Answer 29

But either way, we now have 4x + 4 + 8 = 24

Answer 30

When distributing, you're multiplying by the outside term,

Answer 31

ok

Answer 32

So you just take your numbers one at a time, 4 x 1x and 4 x 1

Answer 33

but it will give you 16x = 24

Answer 34

No, you don't add them up, this is probably the part that confuses you.

Answer 35

So, we need to do the opposite of each other term.

Answer 36

4x + 4 + 8 = 24, we need to get rid of the 8, so we can Subtract 8 from both sides.

Answer 37

4x + 4 = 24

Answer 38

we get rid of the x

Answer 39

4x + 4 + (8 - 8) = 24 - 8

Answer 40

No, the x is the thing we want to keep, we get rid of everything elseon it's side.

Answer 41

Let's make this a step easier, 4x + 12 = 24.

Answer 42

If you want to get rid of 12, so you just have 4x what would you do?

Answer 43

add

Answer 44

And remember what ever you do to one side, you do to the other.

Answer 45

I don't think so, if you added it would make the 12 go up. we want it to go down to 0.

Answer 46

c = -3

Answer 47

That's actually incorrect.

Answer 48

subtract

Answer 49

Yes, what would you subtract though?

Answer 50

If you want 12 to be 0, and remember you do it to both sides.

Answer 51

4x - 12 = 24 24/8 = 3 the answer is 3

Answer 52

The answer is 3, but why did you do what you just did?

Answer 53

9c+4=-23
9c=-23-4
9c=-27
9c/9= -27/9
remain the C devide it by 9
c= -3

Answer 54

You should of subtracted 12, from both sides which got you too 4x = 12

Answer 55

Then divide both sides by 4.

Answer 56

So you would get x=3

Answer 57

We already solved those problems at the top.

Answer 58

like i subtracted 4 - 12 it gives you 8

Answer 59

then i divided 8 into 24

Answer 60

and it gave me 3

Answer 61

That's not always going to happen, you don't want to do that... You already had +12. you would do -12 to make it 0.

Answer 62

ok

Answer 63

just to know if i understand

Answer 64

Solve y over negative 2 + 5 = 13.

Answer 65

its -36 right

Answer 66

No.

Answer 67

You did everything right except for one step, you added 5 to each side instead of subtracted 5 to each side.

Answer 68

If you have + something or - something you want to do the Opposite.

Answer 69

Try it again, using what I just told you.

Answer 70

scant get it

Answer 71

i can't get it