How do you determine the last digit in any measured number? Select one: Round up to one digit larger than the smallest precisely known digit or marking. Estimate one digit past the smallest precisely known digit or marking. Consult the unique rule for each type of lab measurement and instrument. Record the digit corresponding to the smallest precisely known digit or marking.

Estimate one digit past the smallest precisely known digit or marking

Step-by-step explanation:

To determine the last digit in any measured number : Estimate one digit past the smallest precisely known digit or marking

This is employed mostly when trying to round off a measured or calculated number to a precise number of digits and in other to determine the last digit in the given number we will have to estimate one digit past the smallest precisely known digit

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x