Question

Six less than the product of
twice a number and ten is
twenty.

Answer 1

Answer: Number = 1.3

Step-by-Step Solution:

Let the Unknown Number be ‘x’

• Six less than the product of twice a number and ten is twenty

Framing the Equation :-

Six less than => - 6
Twice a number => 2x
Product of 2x and ten => 2x * 10

=> (2x * 10) - 6 = 20

Solving the Equation :-

(2x * 10) - 6 = 20
20x - 6 = 20
20x = 20 + 6
20x = 26
x = 26/20
x = 13/10
=> x = 1.3

Hence, the Unknown Number = 1.3

Answer 2

`\text{First I'd recommend replacing the number with just n.}\\\text{Now, multiply this number by 2:: 2n}\\\text{Multiply 10 by it:: 2n*10}`

`\rule{300}{1.7}`

`\text{6 is subtracted from (2n*10):: (2n*10)-6}`

`\text{This gives a total of 20}`

`\rule{300}{1.7}`

`\text{(2n*10)-6=20}`