my math is hard i just started pre al help!!?

Question

13 more than four times a number is -91

Answer 1

Lets use "x" and start changing words to math...

13 more than 4*x = -91.
More means you are adding, so 13+4x = -91.

Solving:
13 + 4x - 13 = -91 - 13
4x = -104
4x/4 = -104/4
x=-26

Answer 2

Let

4x = four times a number

4x + 13 = 13 more than four times the number

- 91 = the total

- - - - - - - - - - - - -

4x + 13 = - 91

4x + 13 - 13 = - 91 - 13

4x = - 104

4x/4 = - 104/4

x = - 26

The answer is x = - 26

Insert the x value into the equation

- - - - - - - - - - - - - - - - - - - - - - - -

4x + 13 = - 91

4(- 26) + 13 = - 91

- 104 + 13 = - 91

- 91 = - 91

- - - - - - -s-

Answer 3

I've taken algebra and advanced algebra, and for me that stuff was pretty easy, but when I first learned it I had no idea and was just as confused as you are. So there may be hope!

It usually helps when you have a problem like this to start at the end. So, ok, -91 is at the end. So on your paper, write down:
-91

What's next? "is." The word is always means =. So you put down:
= -91

What's next? "A number." Well, in algebra, whenever you see this, you write x.
x = -91

Now, you're not done yet so don't think this is your answer! Keep on going . . . "four times a number" that's 4x
4x = -91

Now, 13 more means you're going to add 13 to whatever's between "than" and "is" (aka 4x). So you have:
4x + 13 = -91

Now you isolate the variable (x) and solve. To do this you have to subtract 13 from both sides:
4x = -91 - 13
4x = -104
Now divide both sides by 4.
x = -104/4
Your answer is -26
x = -26

Answer 4

First: 13 more than four times a number
Four times a Number = 4x
13 more = +13
4x+13

Second IS -91
IS is your clue that it is an equality bet. two numbers
So
4x+13=-91

Solve
4x+13=-91
Transpose 13
4x=-91-13
Subtract
4x=-104
Divide to Both Sides
x=-26

Check
Substitute x
4(-26)+13=-91
add -104 and +13
-104+13=-91
-91=-91: correct

Hope I helped you

Answer 5

Let the number be x.

13 + 4x = -91
4x = -91 - 13
4x = -104
x = -26

Answer 6

lets assume that the number is X
so, 4 times of X plus 13 = -91

so we have

4X+13=-91
or 4X = -91-13 = -104
or X = -104/4 = -26
and that is the answer .. simple :)

Answer 7

Set it up like this, then solve for x:

4x + 13 = -91

4x = -91 - 13 = -104

4x/4 = -104/4

x = -26

Hope that helped you!

~ ♥ ~

Answer 8

13+4x=-91

isolate the variable

4x=-91 - 13

4x= -104

x= -104 / 4

x= -26

Answer 9

26

Answer 10

13 + 4x = -91
4x= -91 - 13
4x= -104
x= -104/4
x= -26