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quester [9]
3 years ago
13

Solve this equation 8+8x=8

Mathematics
2 answers:
Lynna [10]3 years ago
6 0

Answer:  The correct answer is:  " x = 0 " .

________

<u>Step-by-step explanation</u>:

Given:  " 8 + 8x = 8 " ;  Solve for "x" ;

________

Method 1)

________

Subtract "8" from each side of the equation:

________

  → " 8 + 8x − 8 = 8 − 8 " ;

  → On the "left-hand side" of the equation:

          Note the following "like terms" :

            " +8 − 8 = 0 " ;

  →  and we are left with "8x" on the "left-hand side" of the equation.

  → On the "right hand side" of the equation:

         The "(8 − 8)" = 0 ;

________

And we are left with:

  →  " 8x = 0 " ;

________

Now, divide each side of the equation by "8" ;

   to isolate "x" on one side of the equation;

   & to solve for "x" :

________

  →  8x / 8 =  0/8 ;

to get:

  →  " x = 0 " ;

  →  which is the correct answer.

________

Method 2)

________

Given:  " 8 + 8x = 8 " ;  Solve for "x" ;

________

Subtract "8" from each side of the equation; in the following manner:

________

   8  +  8x    =    8 ;

 - 8             =   - 8 ;

_____________

   0  +  8x    =    0 ;

→ We have:  " 0 + 8x = 0 " ;

→ <u>Note</u>: On the "left-hand side" ; we have:

                 " 0 + 8x " ;

  We can simplify this to "8x" ; since the "addition property of zero" states that when "0" is added to any value; the resulting value does not change.

Now, we can bring down the "0" from the "right-hand side" of the equation;

And we can rewrite our equation as:

________

   → " 8x = 0 " ;

Now, divide each side of the equation by "8" ;

   to isolate "x" on one side of the equation;

   & to solve for "x" :

________

  →  8x / 8 =  0/8 ;

to get:

  →  " x = 0 " ;

  →  which is the correct answer.

________

Method 3)

________

Given:  " 8 + 8x = 8 " ;  Solve for "x" ;

________

Divide each side of the equation by "8" ;

________

  → " \frac{(8 + 8x)}{8}  =\frac{8}{8} " ;

________

To solve:

________

<u>Note</u>: On the "right-hand side" of the equation:

________

Take note that: " \frac{8}{8} = (8 ÷ 8) = 1 " ;

________

Rewrite the equation as:

________

 →  " \frac{(8 + 8x)}{8}  =1  "  ;

________

To solve:

________

<u>Note</u>:  " \frac{x}{y} = z " ;  ↔ x = z*y ; (y\neq 0) ;

________

 →  " \frac{(8 + 8x)}{8}  =1  "  ;  

 →  From the "left-hand side" of the equation;

      Let us simplify:

________

 →  " \frac{(8 + 8x)}{8} = \frac{8}{8} + \frac{8x}{8} = 1 + x " ;  

Now, bring down the "1" from the "right-hand side" of the equation;

and rewrite the equation:

________

 →  " 1 + x = 1 " ;

Now, subtract "1" from each side of the equation;

   to isolate "x" on one side of the equation;

   & to solve for "x" :

________

     " 1 + x − 1 = 1 − 1 " ;

  → On the "left-hand side" of the equation:

          Note the following "like terms" :

            +1 − 1 = 0 " ;

  →  and we are left with "x" on the "left-hand side" of the equation.

  → On the "right hand side" of the equation:

         The "(1 − 1)" = 0 ;

  → And we are left with:

      →  " x = 0 " ;

      → which is the correct answer!

________

The correct answer is:  " x = 0 " .

________

Hope that this answer—and the corresponding explanations—

are helpful !

  WIshing you the best!

________

kobusy [5.1K]3 years ago
4 0

Hello!

Answer:

x=0

Step-by-step explanation:

Hope this helps!

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Answer:

Step-by-step explanation:

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

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PROJECT MATH - ANGLE OF ELEVATION AND DEPRESSION
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Answer:

<u>Story</u>

Jane is 1.7 m tall.  She stands 250 m away from the base of the Eiffel tower and looks up at the top of the building.  The angle of elevation from her eyeline to the top of the building is 45°.

<u>Question</u>

Calculate an estimate of the height of the building. Give your answer to the nearest meter.

<u>Calculation</u>

Label the sides of the triangle O, A and H (where O is the side opposite to the angle, A is the side adjacent to the angle and H is the hypotenuse).

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