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GenaCL600 [577]
3 years ago
9

−6(x+7)=−4x−2 how many solutions

Mathematics
2 answers:
yaroslaw [1]3 years ago
8 0

Answer: There is one solution, -20

Step-by-step explanation:

-6(x+7)=-4x-2\\\\Distribute\\\\-6x-42=-4x-2\\\\Add(6x)\\\\-42=2x-2\\\\Add(2)\\\\-40=2x\\\\x=-20

There is one solution, -20

Hope it helps <3

matrenka [14]3 years ago
7 0

Answer:

<h2>Only one solution</h2>

Step-by-step explanation:

Solution,

- 6(x + 7) =  - 4x - 2

Distribute -6 through the parentheses

- 6x - 42 =  - 4x - 2

Move variable to L.H.S and change its sign

- 6x + 4x  - 42 =  - 2

Move constant to R.H.S and change its sign

- 6x + 4x =  - 2 + 42

Collect like terms

- 2x  =  - 2 + 42

Calculate the sum

- 2 x = 40

Divide both sides of the equation by - 2

\frac{ - 2x}{ - 2}  =  \frac{40}{ - 2}

Calculate

x =  - 20

Hope this helps..

Good luck on your assignment..

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Use the Pythagorean identity on page 10 with x = 4 and y= 3 to generate a Pythagorean triple​
Dmitry [639]

Answer:

  c.  7, 24, 25

Step-by-step explanation:

For the formulas ...

  • a=x^2-y^2
  • b=2xy
  • c=x^2+y^2

we can use the given values of x and y to find the corresponding Pythagorean triple:

  a = 4^2 -3^2 = 16 -9 = 7

  b = 2·4·3 = 24

  c = 4^2 +3^2 = 16 +9 = 25

The generated Pythagorean triple is (7, 24, 25), matching answer C.

6 0
2 years ago
The measure of angle D is 5 times the measure of angle E. The two angles are supplementary. Find the measure of each angle
steposvetlana [31]
Angle e = x        angle d = 5x    supplementary means they add up to 180
x + 5x =180
6x = 180
6x/6 = 180/6
x = 30
so angle e = 30 and angle d = 5(30) = 150
4 0
3 years ago
If the range of the function f(x)=x/4 is {28, 30, 32, 34, 36}, what is its domain?
avanturin [10]
Y = x/4
x = 4y
domain = {4(28), 4(30), 4(32), 4(34), 4(36)} = {112, 120, 128, 136, 144}
4 0
3 years ago
Leonardo wrote an equation that has an infinite number of solutions. One of the terms in Leonardo's equation is missing, as show
Tanya [424]

Answer:

The missing term is 3x

Step-by-step explanation:

Given

-(x - 1) + 5 = 2(x + 3) - _

Required

Find _

For proper identification of the parameters, represent _ with Z

So, the equation becomes

-(x - 1) + 5 = 2(x + 3) - Z

Open bracket (start from the left hand side)

-x + 1 + 5 = 2(x + 3) - Z

-x + 1 + 5 = 2x + 6 - Z

Solve like terms

-x + 6 = 2x + 6 - Z

Subtract 6 from both sides

-x + 6 - 6 = 2x + 6 - 6 - Z

-x = 2x - Z

Subtract 2x from both sides

-x - 2x = 2x - 2x - Z

-3x = -Z

Multiply both sides by -1

-3x * -1 = -Z * -1

3x = Z

Reorder

Z = 3x

Hence, the missing term is 3x

4 0
3 years ago
Read 2 more answers
EXPERTS PLEASE HELP!!!!!!!!!!!!!!
Arturiano [62]

Answer:

1. D

2. x=65

Step-by-step explanation:

Hi!

Your answer is D because 78 is 120% of x

120% in decimal point is 1.2.

So it's 1.2x is the same as 120% of x

For question 8:

1.2x=78

Isolate x by divide 1.2 on both sides

78/1.2=65

7 0
3 years ago
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