Question

If the sum of a number and seven is doubled, the result is six less than the number. Find the number

Answer 1

-20

Explanation:

Let the number be Y

If the sum of a number and seven is doubled, the result is six less than the number, The statement is as expressed below

2(Y+7)= Y-6

Find the value of Y

2Y+14=Y-6

Put the like terms together

2Y-Y=-6-14

Y=-20

The number is therefore -20

Verifying

2(-20+7)=-20-6

2(-13)=-26

-26=-26