Answer:
see explanation
Step-by-step explanation:
given the equation
2x + 6 = 3x - 8
Andre's first step was to subtract 3x from both sides, giving
- x + 6 = - 8 ← correct first step
Diego's first step was to subtract 2x from both sides , giving
6 = x - 8 ← correct first step
Both of them made valid first steps in solving the equation.