Question

current skill
which value is not a solution to $105 - 66 < x - 39$?
80
75
83
81
skill code: 1708011

Explanation:

Step1: Simplify left side of inequality

$105 - 66 = 39$

Step2: Isolate $x$ by adding 39

$39 + 39 < x$
$78 < x$

Step3: Check each value

• $80 > 78$: valid solution
• $75 < 78$: not a solution
• $83 > 78$: valid solution
• $81 > 78$: valid solution

Answer:

75