You are playing a card game with friends.Ar one point,you double the score.In the next hand you lose 75 points.You end up with - 25 points.How many points did you have before doubling your score?
Let us say that you started with x points.
You double your score; now you have 2x points.
You now lose 75 points, so you now have 2x - 75 points.
At this point, you now have -25 points.
This gives you the equation: 2x - 75 = -25
Can you solve it from here?
