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
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.