Consider the equation 7 = 3x − 5. Homework Help ✎
Stanley wants to start solving the equation by adding 5 to both sides, while Terrence first wants to subtract 7 from both sides. Will both strategies work? Is one strategy more efficient than the other?
Solve 7 = 3x − 5. Show your steps.
Solving the equation ultimately involves isolating x to determine its value. If both strategies are working towards isolating x through different methods, will both strategies work?
Does one strategy require fewer steps to isolate x? Is the strategy of adding 5 to both sides rather than subtracting 7 a more efficient and direct method?
7 = 3x − 5
Add 5 to both sides.
12 = 3x
4 = x