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Dafna11 [192]
2 years ago
7

7(3x-1)-6(2x+3)=8(x-2)+1​

Mathematics
2 answers:
Vitek1552 [10]2 years ago
5 0

Answer:

X equals 10

hope this help you out

Fed [463]2 years ago
5 0

Answer:

x=10

Step-by-step explanation:

7\left(3x-1\right)-6\left(2x+3\right)=8\left(x-2\right)+1

7\left(3x-1\right)-6\left(2x+3\right)

<u>Expand, using Distributive law:</u>

<u />7\left(3x-1\right)

  • 21x-7

____________

-6\left(2x+3\right)

  • -12x-18

_____________

8\left(x-2\right)+1

  • 8x-16+1
  • -16+1=-15
  • 8x-15

______________

21x-7-12x-18

<u>Combine like terms:</u>

<u />9x-25

9x-25=8x-15

<u>Add 25 to both sides:</u>

<u />9x-25+25=8x-15+25

9x=8x+10

<u>Subtract 8x from both sides:</u>

<u />9x-8x=8x+10-8x

x=10

---------------------------------------------

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Solve the inequality. Explain all steps and identify the properties used. 3a-4&lt;_ 5
Ierofanga [76]
Well, you want to solve for a. You first add the 4 to both sides. 
3a-4<5
3a<9
Then you want to get a by itself so you divide both sides by 3. Since the 3 is positive you don't have to worry about switching the sign. It stays this way <

After you divided both sides by 3 you get a<3
3 0
3 years ago
My Homework Mr Thompson please help!!
Nady [450]

Answers:

  1. C) Factored form
  2. C) Standard form
  3. D) The y intercept is -8
  4. B) Two solutions: x = -5 or x = 5
  5. B) Apply square root to both sides

=========================================

Explanations:

  • For problems 1 and 2, there's not much to say other than you'll just have to memorize those terms. Standard form is ax^2+bx+c in general. The exponents count down 2,1,0. Factored form is where we have two or more factors multiplying with each other. Think of something like 21 = 7*3 showing that 7 and 3 are factors of 21.
  • For problem 3, the y intercept is the last value. It's the constant value. Plug in x = 0 and you'll get y = -8 as a result. The y intercept always occurs when x = 0.
  • In problem 4, we apply the square root to both sides to get x = -5 or x = 5. The plus or minus is needed. This is because (-5)^2 = 25.
  • In problem 5, we apply the square root to both sides to undo the squaring operation.
4 0
3 years ago
EASY BRAINLIEST ANSWER ASAP!!
elena-14-01-66 [18.8K]

Answer:

  1. (0, 4)
  2. (-1, 16/ 3)
  3. (-9/ 2, 10)

Step-by-step explanation:

In an ordered pair the term before the comma is the x variable and the term after the comma is the y variable.

1.

4x + 3y = 12 . . . . . .(0, _)

here were given the x variable

finding the other term

4× 0 + 3y = 12

3y = 12

y = 4

therefore the ordered pair is <u>(0, 4) </u>

2.

. . . . . . . (-1, _)

here were given the x variable

4 × -1 + 3y = 12

3y = 12 + 4

3y = 16

y = 16/ 3

ordered pair is <u>(-1, 16/ 3)</u>

3.

. . . . . . . . (_, 10)

here were given the y variable

finding the other term

4x + 3 × 10 = 12

4x + 30 = 12

4x = 12 - 30

4x = -18

dividing both sides by 2

2x = -9

x = -9/ 2

ordered pair is<u> (-9/ 2, 10)</u>

4 0
2 years ago
Describe how the graph of the equation relates to the graph of y = x2.<br> f(x) = -x + 5)2
Kobotan [32]

Answer:

Step-by-step explanation:

It's y = x^2, not y = x2.  The graph of y = x^2 is a parabola with vertex (0, 0) and which opens up.

The graph of y = (x + 5)^2 has the same shape as that of y = x^2, but has been translated 5 units to the left.

6 0
3 years ago
0.75 is the square root of what value?
lina2011 [118]
0.75^2 = 0.5625.....sq rt 0.5625 = 0.75
4 0
3 years ago
Read 2 more answers
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