<h2>Linear equations</h2>
<em>The </em><em>graphical representation</em><em> of a linear equation is a straight line. To solve</em><em> linear equations</em><em>, i</em><em>t is important to keep in mind the following key concepts:</em>
- <em>Maintain the balance of the equation by applying the </em><em>same operations</em><em> to both sides of the equation.</em>
- <em>Clear the variable using like terms.</em>
- <em>Use </em><em>inverse operations</em><em> to rearrange the equation.</em>
<h3>-x + 5 = 1</h3>
We will subtract 5 from both sides.
<h3>−x + 5 - 5 = 1 - 5</h3><h3>−x = -4</h3>
<em>We divide both sides by -1.</em>
<h3>-x/x = -4/-1</h3><h3>x = 4</h3>
Answer: <em>Therefore the solution of the exercise </em><em>-x+5=1,</em><em> is </em><em>x = 4</em><em>. The </em><em>correct option</em><em> is </em><em>"D".</em> ✅
<h2>See more about this:</h2><h3>
brainly.com/question/15415929</h3>
Answer:
10
Step-by-step explanation:
I got it right
Answer: 
Step-by-step explanation:
The formula for calculating mean = sum of each data / total number
Let the age of the sixth person be x , then
mean = 23 + 13 + 17 + 12 + 15 + x / 6
That is :
22 = 23 + 13 + 17 + 12 + 15 + x / 6
22 = 
= 22 x 6
The M.A.D of the set is 2.4.
