Algebra help...3 less than twice a number is -4. Find the number?

Question

3 less than twice a number is -4. Find the number. Any help with this problem will be GREATLY appreciated! I'm about to go crazy! I know it's right in front of my face but I'm too frustrated now...this sucks! lol

Answer 1

3 LESS than TWICE a number IS 4

Less = subtract the number listed
Twice = times 2
IS = equals

If the number is x...

2x - 3 = -4

To solve...
add 3 to both sides, then divide by 2

2x - 3 = -4
2x = -1
x = -1/2

Answer 2

Assume the number to be X, Now Three less means :
3 minus, twice the number which is X, therefore

3-2X=-4, now solve for X

Hope been of Help

Answer 3

Read the word problem 3 times. First for content, second for what is asked to be found, third to write your equation.

let x = the number
3 less (-3)
twice a number (2x)
is -4

2x -3 = -4

solve

2x = -1
x = -1/2

Answer 4

"twice a number":

2*x

"3 less than twice a number":

2*x - 3

"3 less than twice a number is -4":

2*x - 3 = -4

"Find the number":

Solve the above equation.
-

Answer 5

i do no longer pick to purely provide you the respond if that's homework, yet that's a help: set up 2 parallel problems utilising the given suggestions. call one huge style x and the different y. So - the sum of two numbers is 8 decrease than two times the 1st huge style could appear as if this: x+y=2x-8 Then - their distinction is 4 decrease than two times the 2nd could appear as if this: x-y=2y-4 remedy for y in the 1st concern utilising x as part of the answer. Plug the fee of y into the 2nd equation to offer you a numerical fee of x. Then in basic terms plug the numerical fee of x back into the two equation to remedy for y. that's slightly hint - the fee of x is going to be the better of the two numbers.

Answer 6

You just need to write the sentence in math terms.

Three less is -3
Twice is 2*...
Let's say the number is X you get:

-3 + 2*X = -4 so X = -1/2

Answer 7

2x-3=-4
x=-1/2

take the sentence and put it into math form. three less means -3. twice the number means 2x. is -4 means =-4.


put it all together......-3+2x=-4

add 3 to both sides, divide by 2, and x is -1/2

Answer 8

Let the number be x.
2x-3 = -4
2x= -1
x= -1/2

Answer 9

let the number be x;
2x-3=-4;
2x=3-4;
2x=-1
x= -1/2

Answer 10

2n-3=-4
2n-3+3=-4+3
2n=-1
n=-1/2
n= -1/2