All categories

2 years ago

Solve 4(x-3 )+x =2x+9 and justify your solution

Mathematics

2 answers:

ella [17]2 years ago

7 0

Answer:

X=7

Step-by-step explanation:

Multiply your 4 out on the left side to get

4x-12+x=2x+9

combine like terms on left side

5x-12=2x+9

get the x's by them selves

3x=21

divide both sides by 3

x=7

hope this helps

klio [65]2 years ago

6 0

X=7
after you remove parentheses you do those steps

You might be interested in

A route up a mountain is 20 Km long. john followed this route at an average speed of xkm/h. write down an expression in terms of

timofeeve [1]

Answer:

20/x

Step-by-step explanation:

speed = distance /time

x km/h is speed

20 km is distance

x= 20/t

t= 20/x

3 0

2 years ago

Read 2 more answers

1.A cube has side lengths of 15 inches, what is the surface area and volume of the cube? 2. A cube has side lengths of 8 inches,

omeli [17]

Answer:

Cube 1: 3375 cubed inches, 1350 inches squared.

Cube 2: 512 cubed inches, 384 inches squared.

Step-by-step explanation:

Formula for Volume of a Cube: $V=s^3\\$ (s - side length)

Formula for Surface Area of a Cube: $SA=6s^2$ (s- side length)

The side length's 15 inches.

Find the volume:

$V=15^3\\\rightarrow 15*15*15=3375\\\boxed {V=3375}$

The volume of cube one is 3375in³.

Find the surface area:

$SA=6(15)^2\\\rightarrow 15^2 = 225\\SA = 6 * 225\\\boxed {SA=1350}$

The surface area of cube 1 is 1350in².

The side length's 8 inches.

Find the volume:

$V=8^3\\\rightarrow 8*8*8= 512\\\boxed {V=512}$

The volume of cube two is 512in³.

Find the surface area:

$SA=6(8)^2\\\rightarrow 8^2=64\\SA=6*64\\\boxed {SA=384}$

The surface area of cube 2 is 384in².

<em>Brainilest Appreciated. </em>

3 0

3 years ago

In the graph, z is a complex number represented as a vector from the origin. What is the product of z and its conjugate?

BlackZzzverrR [31]

Do you have a picture

7 0

3 years ago

Solve the given quadratic equation 2x2 + x + 1 = 0.

Ivan

Answer:

2×2+x+1=0

4+x+1=0

5+x=0

x=-5

8 0

3 years ago

Your class has raised $760 for a hunger relief organization. The organization provides farm animals that people can use to produ

melomori [17]

Answer:

760 for hunder relif oragniz

5 0

2 years ago