Which of the following answers gives the best estimate for x given the following equation

21x+1,998=2,243
A. 1
B. 1,000
C. 10
D. 100
Pick the closest answer

1 answer

Given the equation 21x + 1,998 = 2,243, we can solve for x by subtracting 1,998 from both sides:

21x = 2,243 - 1,998
21x = 245

Dividing both sides by 21, we find:

x = 245/21 = 11.667

Out of the given options, the closest answer to 11.667 is C. 10.