Question

Which of the following describes the correct process for solving the equation 3x + 6 = 21 and arrives at the correct solution?

Divide both sides by 6 and then add 3. The solution is x = 5.

Add 6 to both sides of the equation and then divide by 3. The solution is x = 9.

Subtract 6 from both sides of the equation and then divide by 3. The solution is x = 8.

Subtract 6 from both sides of the equation and then divide by 3. The solution is x = 5.

Answer 1

you want to get the x variable alone, so first you would subtract the 6 so you would have
3x=15
and then you would divide by 3 to get
x=5

Answer 2

Subtract 6 from both sides of the equation and then divide by 3. The solution is x = 8.

Answer 3

Divide both sides by 6 and then add 3. The solution is x = 5.

Answer 4

Subtract 6 from both sides of the equation and then divide by 3. The solution is x = 5.

Answer 5

yeah, that's right

Answer 6

Which One?

Answer 7

Subtract 6 from both sides of the equation and then divide by 3. The solution is x = 5.