PLEASE HELP!!!

Question

PLEASE HELP!!!

anonymous · Answer

Which line shows the first error in the solution?

anonymous · Answer

A.
	line 2
	
 
B.
	line 3
	
 
C.
	line 4
	
 
D.
	line 5

anonymous · Answer

i think it's A. or D.

anonymous · Answer

Line 5 is the error. :)

anonymous · Answer

D is wrong, 24/3 should be 8 and not 21

anonymous · Answer

there is no way that it is A. The answer would be D.

anonymous · Answer

There is nothing wrong with line 2. The error is the last line where they are dividing both sides by 3.

anonymous · Answer

exactly as @Pawtpie said.

anonymous · Answer

Thank you so much!

mathstudent55 · Answer

Line 1 through line 4 are correct.

Line 4 is: 3x = 24
You are solving for x.

Since x is being multiplied by 3, you need to do the opposite operation
of multiplying by 3. That is divide by 3. You must divide both sides by 3 to find x.
3x/3 = 24/3
x = 8 This is the correct answer.

The error in line 5 is that the left side of line 4 (3x) was divided by 3, but the right side of line 4 (24) had 3 subtracted from it.  You can't divide one side of an equation by a number and at the same time subtract the number from he other side. You must do the same operation to both sides.