Twice the difference of a number and 1 is 4 more than that number. Find the numbers using Polyas 4 step

6

Step-by-step explanation:

2 times the difference of a number and 1 = 4 plus that number

In other to express the word problem Mathematically ; let the number = x

2(x - 1) = 4 + x

Expand

2x - 2 = 4 + x

Collect like terms

2x - x = 4 + 2

x = 6

Hence, the number is 6

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed