Question

What makes 3 + 7 + 2 = ? +2 true?(A)14(B)12(C(10

Answer 1

Step 1; Write out the expression

`\begin{gathered} 3+7+2=x+2 \\ \text{where the unknown value is represented by x} \end{gathered}`

Step2: simplify the expression

`\begin{gathered} 12=x+2 \\ \text{collecting like terms} \end{gathered}`
`\begin{gathered} x=12-2 \\ x=10 \end{gathered}`

Therefore 10 makes the expression true. C is the correct option