Answer:
(B) Luis's, because he flipped the inequality sign when he subtracted
Step-by-step explanation:
Let's evaluate each answer choice:
<u>"Amelia's, because the variable term must be isolated on the left side"</u>
This answer choice is wrong! Whichever side the variable term is isolated on DOESN'T affect the answer of the problem.
<u>"Luis's, because he flipped the inequality sign when he subtracted"</u>
This answer choice is right! Only flip the inequality sign when dividing a NEGATIVE number.
<u>"Shauna's, because she did not apply the subtraction property of equality properly"</u>
This answer choice is wrong! Shauna correctly applied the subtraction proper by subtracting 6.5 from both sides.
<u>"Clarence's, because the terms he added together were not like terms"</u>
This answer choice is wrong! Clarence added 8.1 to both sides, so he added 8.1 to 6.5, which are like terms.
Hope it helps (●'◡'●)