Question

Solve for k in 2 - (k+4) = 3a.) What is the variable?b.) What is happing to the variable? (list the operations from the first thing to the last thing)c.) What is the inverse (opposite) of the last thing that happened to the variable. (Make a list of the steps to solve)

Answer 1

We have the equation 2-(k+4)=3.

The variable is k, because is the only unknown number. Solving for k:

$\begin{gathered} 2-(k+4)=3 \\ 2=3+(k+4)=3+4+k=7+k \\ 2-7=k \\ -5=k \end{gathered}$

The variable has the following operations:

• Add 4

,

• Multiply by (-1)

,

• Add 2

The inverse of the last thing is Subtract 2, subtract is the opposite of add.