Which of the following answers gives the best estimate for x given the following equation?
21x + 1,998 = 2,243
(1 point)
1
10
1,000
100
Using the equation 21x + 1,998 = 2,243, we can solve for x by subtracting 1,998 from both sides of the equation and then dividing both sides by 21.
21x = 2,243 - 1,998
21x = 245
x = 245 / 21
x ≈ 11.67
Therefore, the best estimate for x is approximately 11.67.
None of the given options (1, 10, 1,000, 100) are close to this value.