Attempt the question, check the explanation, and continue with similar questions to build confidence before exams.
What will be the final outcome...
x
x - 1
x + 1
3x
Continue with nearby questions to strengthen the same chapter concept while you still have the context fresh in mind.
If you think of a number x, double it, then add 4, what expression represents your final result after these steps?
After performing the 'Think of a Number' trick that results in always getting 2, if you wanted the result to be 3 instead, which operation can you change?
If you think of a number, double it, add 4, divide by 2, and subtract the original number, what will the result always be?
In the 'Think of a date' trick, what happens if the month M is 12 and the day D is 31?
