How do you solve $3-5n=42$ ?

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Answer 1 · 2016-11-28T17:44:47

$n = -39/5$

Step 1) Subtract $3$ from each side of the equation to isolate the $n$ term and keep the equation balanced:

$3 - 3 - 5n = 42 - 3$

$0 - 5n = 39$

$-5n = 39$

Step 2) Divide each side of the equation by $-5$ to solve for $n$ and keep the equation balanced:

$(-5n)/(-5) = 39/(-5)$

$(cancel(-5)n)/(cancel(-5)) = -39/5$

$n = -39/5$

How do you solve 3-5n=423-5n=42?