Answer:
B
Explanation:
Substitute each value of x into the left side of the equation and if equal to the right side then it is a solution.
x = 3
24 - 3 = 21 ≠ 20 ← not a solution
x = 7
24 - 7 = 17 ≠ 20 ← not a solution
B. Neither is a solution
24-x=20
-x=20-24
-x = - 4
X=4
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