Question

A number is multiplied by 3and then 5 is added to it to get the answer as 20

Answer 1

let the unknown no be = X

ATQ

X*3 + 5 = 20 ( * represent multiplication )

X*3 = 20 - 5

X*3 = 15

X = 15 / 3 ( / represent division )

X = 5

Answer 2

Answer

Let the number be x 3(x)+5 = 20 3x +5 =20 3x=20-5 3x =15 x= 15÷3 x= 5

Answer 3

Answer

Let the number be x 3(x)+5 = 20 3x +5 =20 3x=20-5 3x =15 x= 15÷3 x= 5