Question

if 7 is added to twice a number and this sum is multiplied by 2, the result the same as if the number is multiplied by -8 and 2 is added to product, what is the number?

Answer 1

x - the number


`2(2x+7)=-8x+2 \\ 4x+14=-8x+2 \\ 4x+8x=2-14 \\ 12x=-12 \\ x=(-12)/(12) \\ x=-1`

The number is -1.