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Sidana [21]
3 years ago
13

(x - 4) - (x + 7) = 8x

Mathematics
2 answers:
Vedmedyk [2.9K]3 years ago
4 0

Answer:x = -11/8 = -1.375

Step-by-step explanation:

lorasvet [3.4K]3 years ago
3 0

Answer: x = -11/8 = -1.375

Step-by-step explanation:Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    (x-4)-(x+7)-(8*x)=0  

Step by step solution :

Step  1  :

Pulling out like terms :

1.1     Pull out like factors :

  -11 - 8x  =   -1 • (8x + 11)  

Equation at the end of step  1  :

Step  2  :

Solving a Single Variable Equation :

2.1      Solve  :    -8x-11 = 0  

Add  11  to both sides of the equation :  

                     -8x = 11

Multiply both sides of the equation by (-1) :  8x = -11

Divide both sides of the equation by 8:

                    x = -11/8 = -1.375

One solution was found :

                  x = -11/8 = -1.375

Processing ends successfully

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6 0
4 years ago
Is (-2, 0) the solution to the system below?
o-na [289]

Answer:

No, the answer is (-3/7, -33/7)

Step-by-step explanation:

y=-3x-6 can be rewritten as y+3x=-6

so, our two equations are:

1. y+3x=-6

2. 3y+2x=-15

we can multiply the first equation by 3.

1-1.3y+9x=-18

Now we can subtract the second equation from equation 1-1.

3y+9x=-18

<u>-(3y+2x=-15)</u>

7x=-3

x=-3/7

Now that we have x, let's plug it into an equation. I will plug it into the first equation.

y=-3(-3/7) - 6

y=9/7 - 6

y=-33/7

so the points are (-3/7, -33/7)

7 0
3 years ago
Read 2 more answers
Detective pi is having a birthday party for the first baby rhino the cake serves 50 people and cost $120. How much does the cake
irakobra [83]
120/50=2
$2 per person
8 0
4 years ago
Can you please help me What is 2/3 x 1/2
grandymaker [24]

Answer:

2/6 lol

Step-by-step explanation:

hope this helps :3

4 0
3 years ago
Read 2 more answers
matt built a house with 164 blocks the main part of his house has 100 blocks the roof has 50 blocks the chimney has 14 blocks wr
Minchanka [31]

Given:

The total number of blocks  = 164

Number of blocks used  for the main part of the house = 100

Number of blocks used  for the roof of the house = 50

Number of blocks used  for the chimney of the house = 14

Solution:

The number of blocks used for the new house is also 164

Let the number of blocks used for the main part of the new house be x, roof be y, chimney be z

Then

x+y+z =164

110 + 34+20 = 164

8 0
4 years ago
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