Felipe subtract 3x from both side to get rid of x on one side. Ik this isn’t part of the answer but the correct way to do this would be to subtract 2x from each side after adding 8 to each side of the equation
The answer is 21 + 4x.
You find this answer by adding up all the sides.
9+12+4x= 21+4x ... you don't add 4x because it has a variable that we do not know of the value.
Answer:
19
Step-by-step explanation:
19 is the answer I think so
X-45+10=15
X-35=15
+35 +35
X=50
He had 50 dvds to begin with.
