All categories

3 years ago

Solve for x: 22x+11=4x-7

Mathematics

2 answers:

NNADVOKAT [17]3 years ago

5 0

22x + 11 = 4x - 7

-4x -11 -4x -11

18x = -18

X=-1

padilas [110]3 years ago

4 0

Hello there!

Solve for x.

$22x+11=4x-7$

Explanation

↓↓↓↓↓↓↓↓↓↓

First you had to subtract by 11 from both sides of the equations.

$22x+11-11=4x-7-11$

Simplify

$22x=4x-18$

Then you subtract by 4x from both sides of the equations.

$22x-4x=4x-18-4x$

Simplify

$18x=-18$

Divide by 18 from both sides of the equations.

$\frac{18x}{18}=\frac{-18}{18}$

Simplify it should be the correct answer.

$x=-1$

Answer⇒⇒⇒⇒⇒⇒x=-1

Hope this helps!

Thank you for posting your question at here on Brainly.

Have a great day!

-Charlie

You might be interested in

The volume of a 10 ounce box of cheerios is 258.75in3. the length of the box is 4 inches less than the height and the width is 3

Marina86 [1]

Answer:

Height of the box = 11.5 in

Step-by-step explanation:

Let h be the height of the box.

Assuming the volume of the Box is $258.75\ in^3$ .

Given:

Length = Height - 4 = h - 4

Width = 3 in

We need to find the height of the box.

Solution:

We know that the volume of the box.

$Volume = Length\times height\times width$

Substitute all given value in above formula.

$258.75 = (h-4)\times h\times 3$

Rewrite the equation as:

$258.75 = 3h(h-4)$

$258.75 = 3h^2-12h$

$3h^2-12h-258.75=0$

whole equation divided by 3.

$h^2-4h-86.25=0$

Use quadratic formula with $a = 1, b = -4,c=-86.25$

$h=\frac{-b\pm \sqrt{(b)^{2}-4ac}}{2a}$

Put these a, b and c value in above equation.

$h=\frac{-(-4)\pm \sqrt{(-4)^{2}-4(1)(-86.25)}}{2(1)}$

$h=\frac{4\pm \sqrt{16+345}}{2}$

$h=\frac{4\pm \sqrt{361}}{2}$

$h=\frac{4\pm 19}{2}$

For positive sign

$h=\frac{23}{2}$

h = 11.5 in

For negative sign

$h=\frac{-15}{2}$

h = -7.5

We take positive value of h.

Therefore, the height of the box h = 11.5 in

4 0

2 years ago

PLEASE HELP!!!!!!!! Just all of 2 and 4 PLEASE

alukav5142 [94]

Answer: question 2 b = $3.5992

question 2 c = $48.5892 or you can write $48.58

thats how much i know i dont know about the rest sorry

i will try them out and come back to you if i find an answer

Step-by-step explanation:

6 0

3 years ago

Could someone pls help me out? Thank u so much

vesna_86 [32]

Answer:

$25

Step-by-step explanation:

c=30−(0.25)(20)

c=30+(−5)

c=(30+(−5)

30-5

Combine Like Terms

c=25

8 0

2 years ago

The family of solutions to the differential equation y ′ = −4xy3 is y = 1 √ C + 4x2 . Find the solution that satisfies the initi

slega [8]

Answer:

The correct option is 4

Step-by-step explanation:

The solution is given as

$y(x)=\frac{1}{\sqrt{C+4x^2}}$

Now for the initial condition the value of C is calculated as

$y(x)=\frac{1}{\sqrt{C+4x^2}}\\y(-2)=\frac{1}{\sqrt{C+4(-2)^2}}\\4=\frac{1}{\sqrt{C+4(4)}}\\4=\frac{1}{\sqrt{C+16}}\\16=\frac{1}{C+16}\\C+16=\frac{1}{16}\\C=\frac{1}{16}-16$

So the solution is given as

$y(x)=\frac{1}{\sqrt{C+4x^2}}\\y(x)=\frac{1}{\sqrt{\frac{1}{16}-16+4x^2}}$

Simplifying the equation as

$y(x)=\frac{1}{\sqrt{\frac{1}{16}-16+4x^2}}\\y(x)=\frac{1}{\sqrt{\frac{1-256+64x^2}{16}}}\\y(x)=\frac{\sqrt{16}}{\sqrt{{1-256+64x^2}}}\\y(x)=\frac{4}{\sqrt{{1+64(x^2-4)}}}$

So the correct option is 4

8 0

3 years ago

Read 2 more answers

What equation results from completing the square and factoring x2+2×=9

Arturiano [62]

The answer should be A. If you need work I can show you.

5 0

2 years ago