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Grade 8
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Checking and Validating Solutions to Linear Equations
Worksheet
Grade Level
Grade 8
8.66 Checking and Validating Solutions to Linear Equations
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Skill Level
🔴 Hard
00:00
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25% to Medium
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Diego checked y = 5 in 4(y + 1) = 24 and wrote, "4(5) + 1 = 24" Which statement best describes the mistake?
A
The student compared the two sides correctly but made a final conclusion error.
B
The student dropped the term inside the parentheses and checked 4(5) + 1 instead of keeping the entire expression inside the parentheses.
C
The student replaced the variable on both sides, but the arithmetic after substitution is the only problem.
D
The student should have solved the equation instead of checking it by substitution.
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