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

-20

Step-by-step 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

the car was traveling 40 mph before it started skidding. ( 2 points ) 17. was the driver were her brakes working at 75% efficiency or better? ( 2 points ) yes 29.

step-by-step explanation: