Answer:
<u><em>Equations : </em></u>
<u><em>27 - 15 = x</em></u>
<u><em>15 + x = 27</em></u>
Step-by-step explanation:
<u><em>So, we know that 1. Pam starts with 15 candies. and 2. Pam ends up having 27 candies. This means, that she </em></u><u><em>gained</em></u><u><em> candy.</em></u>
<u><em>To figure out how many candies her sister gave, her, we have to find the </em></u><u><em>difference between 27 and 15 </em></u><u><em>becuase</em></u><u><em> she goes from having 15 to having 27 after her sister had given some.</em></u>
<u><em>x will represent how many cadies Pams' sister had given her : </em></u>
<u><em>27 - 15 = x</em></u>
<u><em>12 = x</em></u>
<u><em>This means </em></u><u><em>Pams' sister gave 12 candies to Pam. </em></u><u><em>To make sure we are correct, we can simply start with how many candies Pam started with (15). And add how many we think her sister added (12)</em></u>
<u><em>15 + 12</em></u>
<u><em>15 + 12 = 27</em></u>
<u><em>Therefore proving, and meaning, that Pams' sister gave her 12 candies.</em></u>
<u><em>Possible Equations : </em></u>
<u><em>27 - 15 = x</em></u>
<u><em>End total (27) minus starting total (15).</em></u>
<u><em>15 + x = 27</em></u>
<u><em>Starting total (15) plus how many she gained (x) equal to end total (27).</em></u>