Solve one-step equations and interpret the solution in context.
Choose the inverse operation and solve
Problem
Which inverse operation below should you use to solve \(x~-~8~=~13\)? Choose it, then solve the equation.
A. Add \(8\) to \(\text{both}~\text{sides}\). B. Subtract \(8\) from \(\text{both}~\text{sides}\). C. Divide \(\text{both}~\text{sides}\) by \(8\).
Big Picture
What this problem is really about
Identify exactly what has been done to x: eight has been subtracted. The useful first move must reverse that operation on both sides, while repeating subtraction or introducing division cannot isolate the variable. After applying the inverse, substitute the resulting value into the original equation to verify it.
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