Question

Multiply me by 7. then subtract 17.if you subtract 10 and then add 5 you get 20. what number am i ?

Answer 1

Hello from MrBillDoesMath!

Answer:

6

Discussion:

Let the unknown number called "x". Then the question states that

(7x -17) - 10 + 5 = 20 =>

7x + (-17 - 10 + 5) = 20 => as -17 -10 + 5 =-27 +5 = -22

7x -22 = 20 => add 22 to both sides

7x = 20 + 22 => 20 + 22 = 42

7x = 42 => divide both sides by 7

x = 42/7 = 6

Thank you,

MrB

Answer 2

You number is 6

Explanation:

Let x = number

Multiply me by 7

7x

then subtract 17

7x-17

if you subtract 10

7x - 17-10

7x - 27

then add 5

7x -27 +5

7x -22

you get 20

7x -22= 20

Add 22 to each side

7x -22+22=20+22

7x=42

Divide by 7

7x/7 = 42/7

x =6