Question

Solve this equation 3n+8=20

Answer 1

Given the equation below

`3n\text{ + 8 = 20}`

Step 1

Collect like terms.

`\begin{gathered} 3n=20-8 \\ 3n=12 \end{gathered}`

Step 2

Divide both sides of the equation obtained, by the coefficient of the unknown.

`\begin{gathered} \text{The unknown is n.} \\ \text{The co}efficient\text{ of n is 3.} \\ \text{Thus,} \\ (3n)/(3)=(12)/(3) \\ \Rightarrow n=4 \end{gathered}`

Hence, the value of n in the equation is 4