SOLUTION: The algebraic steps below describe a number trick. Describe it in words.
1. x
2. x + 7
3. 2(x+7) = 2x + 14
4. 2x +14 - 4 = 2x + 10 = 2(x +5)
5. 2(x+5)/2 = x + 5
6. x +5 - x
Algebra.Com
Question 331588: The algebraic steps below describe a number trick. Describe it in words.
1. x
2. x + 7
3. 2(x+7) = 2x + 14
4. 2x +14 - 4 = 2x + 10 = 2(x +5)
5. 2(x+5)/2 = x + 5
6. x +5 - x = 5
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Pick any integer.
Add 7
Multiply by 2
Subtract 4
Divide by 2
Subtract your original integer
Your answer is 5.
Ooooooo, how did you do that!?
John
My calculator said it, I believe it, that settles it
RELATED QUESTIONS
7/x+2 +... (answered by Maths68)
{{{(x+5)/6 -((14-x)/2 -... (answered by Edwin McCravy)
1. |x | = 6
2. |3x + 2| = 14
3. - 5| x + 1| = -10
4. |x - 2| + 10 = 12
(answered by Nate)
describe the solution of each of the following inequalities by graphing.
1. x-2y>3
2.... (answered by ewatrrr)
hi i need help with quadratic equations and i need steps please
1)(x-6)(x-4)=0... (answered by MathLover1)
1. Use the midpoint formula to find the midpoint of a line segment with endpoints: (2,... (answered by jim_thompson5910)
1/2-x+7=3/4+2x (answered by lenny460)
How do you describe the end behavior of a graph? Ex.... (answered by stanbon)
What is the Numeric Solution and Number Line Graphic Solution for the following problems:
(answered by jim_thompson5910)