Answer:
51 DVDs
Step-by-step explanation:
Let the number of DVDs and CDs sold be x each.
<u>Initial</u>
Number of DVDs= 86
Number of CDs= 52
<u>After selling</u>
Number of DVDs= 86 -x
Number of CDs= 52 -x
Given that there are 3 times as many DVDs than CDs left,
86 -x= 3(52 -x)
<em>Expand:</em>
86 -x= 156 -3x
<em>Bring x terms to 1 side, constant to the other:</em>
3x -x= 156 -86
<em>Simplify:</em>
2x= 70
<em>Divide both sides by 2:</em>
x= 35
Amount of DVDs left
= 86 -x
= 86 -35
= 51
Answer:
Yes, The answer is 63.
<em>Hope this helped and remember you are amazing, wanted, special, talented, beautiful//Handsome.</em>
Answer:
x = 2
Step-by-step explanation:
<u>Given</u>
2x^2-5+1=3
<u>Combine like terms</u>
-5 + 1 = -4
2x^2 - 4 = 4
<u>Add 4 to both sides</u>
2x^2 = 8
<u>Divide both sides by 2</u>
8/2 = 4
<u>Simplify</u>
x^2 = 4
<u>Square both sides</u>
<u>Simplify</u>
x = 2
<u>Answer</u>
x = 2
