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Basic Math
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Example
3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b
Question
$$5L+6M-7N-6L-3M$$
Evaluate
$-L+3M-7N$
Solution Steps
Combine $5L$ and $-6L$ to get $-L$.
$$-L+6M-7N-3M$$
Combine $6M$ and $-3M$ to get $3M$.
$$-L+3M-7N$$
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Differentiate w.r.t. L
$-1$
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