which of the following answers gives the best estimate for x given the following equation?

21x+1,998=2,243

100

10

1,000

1

1 answer

To find the best estimate for x, we need to solve the equation 21x + 1,998 = 2,243.

Subtracting 1,998 from both sides of the equation, we get:
21x = 2,243 - 1,998
21x = 245

Dividing both sides of the equation by 21, we find:
x = 245/21
x ≈ 11.67

Out of the given options, the best estimate for x is 10.