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kotykmax [81]
3 years ago
5

Solve the linear equation by combining like terms: 23 + 7 - 2x = 8x

Mathematics
2 answers:
Aleks [24]3 years ago
3 0

Answer:

23+7-2x=8x

We simplify the equation to the form, which is simple to understand  

23+7-2x=8x

We move all terms containing x to the left and all other terms to the right.  

-2x-8x=-23-7

We simplify left and right side of the equation.  

-10x=-30

We divide both sides of the equation by -10 to get x.  

x=3

Step-by-step explanation:

natta225 [31]3 years ago
3 0

Answer:

x=3

Step-by-step explanation:

23 +7-2x=8x

Combine like terms

30-2x=8x

Add 2x to each side

30-2x+2x = 8x+2x

30 = 10x

Divide each side by 10

30/10 = 10x/10

3 = x

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MaRussiya [10]

Answer:

Values of y in order: 0, 2, 4, 6

Step-by-step explanation:

Hi there!

In the table, the first value of x is -2. To find the value of y for this row of the table, we can use the given equation y=2x+4.

y=2x+4

Plug in -2 as the value of x

y=2(-2)+4\\y=-4+4\\y=0

Therefore, y is 0 when x is -2. (In the table, in the row where x is -2, y would be 0.)

We repeat this process for the rest of the values in the table.

When x=-1:

y=2(-1)+4\\y=-2+4\\y=2

When x=0:

y=2(0)+4\\y=0+4\\y=4

When x=1:

y=2(1)+4\\y=2+4\\y=6

I hope this helps!

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3 years ago
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3 years ago
Mrs. Robertson is taking a picture of three students-Zach, John, and
DanielleElmas [232]
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3 years ago
Let x = a bi and y = c di and z = f gi which statements are true? check all of the boxes that apply. x y = y x (x × y) × z = x ×
Alex73 [517]

A complex number is a part of a number system that includes a real unit and an imaginary unit. All the statements are true except C and E.

<h3>What is a Complex Number?</h3>

A complex number is a part of a number system that includes the real numbers as well as a particular element labelled i, sometimes known as the imaginary unit, and which obeys the equation i² = 1.

As it is given that x=(a+bi), y=(c+di), and z=(f+gi), therefore, we need to plug in the values to check which all are true.

A.) x+y=y+x

x+y=y+x\\a+bi+c+di=c+di+a+bi

As the two sides of the equation are equal, the equation is true.

B.) (x × y) × z = x × (y × z)

(x \times y) \times  z = x \times  (y \times  z)\\\\\ [ (a+bi)  \times (c+di) ]\times (f+gi) = (a+bi)  \times [(c+di) \times (f+gi)]\\\\(ac+adi+bci-bd) \times (f+gi)=  (a+bi)  \times (cf+cgi+fdi-dg)

(ac+adi+bci-bd) \times (f+gi)=  (a+bi)  \times (cf+cgi+fdi-dg)\\\\\\acf+adfi+bcfi-bdf+acgi-adg-bcg-bdgi = acf+acgi+afdi-adg + bcfi-bcg-bfd-bdgi

As the two sides of the equation are equal, the equation is true.

C.) x−y=y−x

x-y=y-x\\\\(a+bi)-(c+di)=(c+di)-(a+bi)\\\\a+bi-c-di=c+di-a-bi

As the two sides of the equation are not equal, the equation is not true.

D.) (x+y)+z=x+(y+z)

(x+y)+z=x+(y+z)\\\\(a+bi+c+di)+f+gi = a+bi+(c+di+f+gi)\\\\a+bi+c+di+f+gi = a+bi+c+di+f+gi

As the two sides of the equation are equal, the equation is true.

E.) (x−y)−z=x−(y−z)

(x-y)-z=x-(y-z)\\\\(a+bi-c-di)-f-gi = a+bi-(c+di-f-gi)\\\\a+bi-c-di-f-gi =a+bi-c-di+f+gi)

As the two sides of the equation are not equal, the equation is not true.

Hence, all the statements are true except C and E.

Learn more about Complex Number:

brainly.com/question/12464608

6 0
2 years ago
3.25 repeating as a mixed number (25 repeats)
gizmo_the_mogwai [7]

Answer:

3.25 = 3 1/4

Step-by-step explanation:

The decimal 3.25 would be written a couple of different ways as a fraction: 3.25 = 3 1/4 as a mixed number. 3.25 = 13/4 as an improper fraction.

3 0
3 years ago
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