Respuesta :
Answer:
see explanation
Step-by-step explanation:
Given
3x - y = 2
Substitute y = x - 1 into the equation
3x - (x - 1) = 2
3x - x + 1 = 2 ← simplify left side
2x + 1 = 2 ← required equation after substitution
Given.
3x - y = 2
Substitute x - 1 for variable y.
3x - x - 1 = 2 ← Resulting equation
