<em>Answer:</em>
<u>x = 7</u>
<u>y = 11</u>
<em>Step-by-step explanation:</em>
Do you see those little arrow marks? Those indicate that if a side has those marks, they have the same length. If a side with one arrow is 7 units long, then it means that x = 7, because the side with x also has one arrow. Then, just plug in 7 into the y+x equation, and set it equal to the other side. (18).
y + 7 = 18; subtract 7 from both sides, to get <u>x = 7; y = 11.</u>
<u></u>
<em>Hope this helps! Feel free to give me Brainliest if you feel this helped. Have a good day, and good luck on your assignment. :)</em>
