Question

What is the value of m in the equation m-23.6 = 58.3 and why? A.) 81.9, because to isolate m, you would add 23.6 and 58.3.B.) 34.7, because to isolate m, you would subtract 23.6 from 58.3.C.) -34.7, because 23.6 - 58.3 = 34.7D.) -81.9, because -23.6 - 58.3 = -81.9

Answer 1

$m-23.6=58.3$

Add '23.6' on the RHS nad the LHS of the above expression.

$\begin{gathered} m-23.6+23.6=58.3+23.6 \\ m-0=81.9 \\ m=81.9 \end{gathered}$

Thus, the value of m is 81.9. And the corect option is, option (A) 81.9, because to isolate m, you would add 23.6 and 58.3.