Question

twelve decreased by twice a number is the same as 8 times the sum of the number plus 4. What is the number

Answer 1

The number is 4/5 or 0.8.

let x be the number.

12 - 2x = 8x + 4

-12 -8x   -8x   -4

-10x = -8

-10x\-10 = -8/-10

x = 4/5 or 0.8