zahraaghanemi zahraaghanemi
  • 26-01-2020
  • Mathematics
contestada

What is the algebraic equation for this math trick

Pick a number
Add 2
Multiply by 3
Subtract 3
Divide by 3
Subtract the original number

Respuesta :

jpmexican jpmexican
  • 26-01-2020

Answer:

it will always be 1

Step-by-step explanation:

lets make an equation

pick a number : x

add 2 : x+2

multiply by 3 : (x+2)*3

subtract 3 : (x+2)*3-3

divide by 3 : ((x+2)*3-3)/3

if you simplify, you will get 1

step by step simplification

(x+2)*3 = 3x+6

3x+6-3=3x+3

(3x+3)/3 = x+1

x+1-x=1

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