So you need to get C by itself. So you are going to divide -1/7 by 21. Then that will give you the answer x=3
Answer:
<h2>50s</h2>
Step-by-step explanation:
<h2>To find algebraic expression, you need to look at the paragraph</h2>
<h2>Cost of 1 gift card of music : $50</h2><h2>Cost of each song : s dollars</h2>
<h2>We have to multiply 50 by s dollars.</h2>
