|2x+5|=9 how do i solve this

1 answer:

7 0

So pretty much you have to have the x alone. so u will have to -5 on both sides. then it will be 2x=4. so u will divide 2 on both sides. so u will get x=2

You might be interested in

The perimeter of a rectangular pool is 306m. If the length of the pool is 87m, what is its width?

s344n2d4d5 [400]

Answer: the width is 66

Step-by-step explanation: see if 87m is the width then you add it twice it equals 174 then you subtract it from 306m which equals 132 but since theres two sides you divide it to get 66 Hope this help happy Easter!! c:

4 0

3 years ago

If f is a function, then f(3x)=3f(x)

Delvig [45]

This is false.
The f(3x) means you are multiplying the input 'x' by 3 before plugging into the equation.
3f(x) means you are going to multiply your answer (output) by 3 after you've plugged the input value in and gotten the output.

7 0

3 years ago

15 POINTS!!!!!! PLEASE HELP!!The length of a rectangle is four times its width. If the perimeter is at most 130 centimeters, wha

marin [14]

Here is the information we have:

1. The perimeter is at most 130 cm.
2. The length of the rectangle is 4 times the width.
We can let l stand for length and w for width.

The formula for the perimeter of a rectangle is 2l + 2w.
We have to change the formula a bit.
The length of this rectangle is going to be 4 times the width
So, replace 2l with 2(4w).

Then make this equation equal to 130.

2(4w) + 2w = 130 ; Start
8w + 2w = 130 ; Distribute the 2 across the 4w
10w = 130 ; Combine the like terms 8w and 2w
w = 13 ; Divide both sides by the coefficient of w. Which is 10

8 0

3 years ago

What number would ypu add to both sides of x^2+7x=4 to complete the square

Tcecarenko [31]

For a monic quadratic (factor of 1 on $x^2$ ) we always add half the coefficient on the linear ( $x$ ) term, so