A number minus 8 then subtracted by 12.
What is the number?

x=20

Step-by-step explanation:

Let the number be x

(x-8)-12=0

x-8-12=0

x-20=0

Add 20 to both sides

x=20

according to this law, when unemployment goes up by 1%, gdp drops by 2%. in the question, unemployment rate goes from 2% to 5%, meaning unemployment goes up by 3%, so the gdp drops by 6%. thus the effect is a drop in gdp by 6%.

step-by-step explanation:

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0