solve the equation 3(n + 3)=-4n + 30. what is the value of n? n =

Explanation:

Step1: Expand the left - hand side

$3(n + 3)=3n+9$, so the equation becomes $3n + 9=-4n + 30$.

Step2: Add $4n$ to both sides

$3n+4n + 9=-4n+4n + 30$, which simplifies to $7n+9 = 30$.

Step3: Subtract 9 from both sides

$7n+9 - 9=30 - 9$, resulting in $7n=21$.

Step4: Divide both sides by 7

$\frac{7n}{7}=\frac{21}{7}$, so $n = 3$.

Answer:

$3$