Question
Find the value of k, when a=−1 and b=4 is the solution of the equation −2a=−5b+k.
Answer: Option D
:
D
If a=−1,b=4 is the solutionof equation −2a=−5b+k, then they will satisfy the given equation.
Putting values of a&b in the given equation.
So,
−2(−1)=−5(4)+k2=−20+k⇒k=20+2⇒k=22.
Therefore, the value of k is 22.
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:
D
If a=−1,b=4 is the solutionof equation −2a=−5b+k, then they will satisfy the given equation.
Putting values of a&b in the given equation.
So,
−2(−1)=−5(4)+k2=−20+k⇒k=20+2⇒k=22.
Therefore, the value of k is 22.
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