Steps for solving 4x - 12 = 20 are shown. Explain how Step 3 helps solve the equation.
4x - 12 = 20
4 x-12 +12 = 20 +12
4x = 32
32
4
X = 8
Original equation
Step 1
Step 2
Step 3
Step 4
A. Dividing both sides by 4 eliminates the variable.
B. Multiplying both sides by 4 undoes the division.
O c. Multiplying both sides by 4 isolates the variable.
D. Dividing both sides by 4 isolates the variable.

1. if we have 3 babies what is the probability they’re going to be all boys? 2. if we roll 2 die at the same time what is the probability of getting less than 10 on the first roll and a 5 on the second roll 3. if we have 3 babies what is the probability their is going to be 2 girls? 4. if we have 3 babies what is the probability of having no more than 1 girl? 5. it we have 3 babies and then have another 3 babies what is the probability of us having at least 1 boy and then having all girls?

Which expression gives the exact value of x?

Find the percent error of the measurement 4 cm