Callie solved this one-variable equation. When she was done, she tried to verify her answer, but found that it was wrong. Can yo
u find her mistake? 1 2 (4k + 8) = 10 1. 2k + 16 = 10 2. 2k = −6 3. k = −3
2 answers:
Answer:
Mistake found in step 1
Step-by-step explanation:
Callie solved this one-variable equation. When she was done, she tried to verify her answer, but found that it was wrong.
Step 1:
Step 2:
Step 3:
In step 2, 2 is distributed inside the parenthesis
When 2 is multiplied inside the parenthesis, the equation becomes
She forgot to multiply 2 with 4k
So the mistake is in step 1
2(4k+8)=10
8k+16=10 (she said 2k instead of 8k)
To continue solving, subtract 16 from both sides. That would give you 8k= -6. Then divide both sides by 8, and get -6/8 which equals -3/4.
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<u>Given:</u>
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<u>Solve:</u>
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