Answer:
x=-2
Step-by-step explanation:
Remove parenthesis 3(-x+(2x+1))=x-1
Collect the like terms 3(-x+2x+1)=x-1
Multiply parenthesis by 3 3(x+1)=x-1
Move terms 3x+3=x-1
Collect the like terms and calculate 3x-x=-1-3
Divide both sides by 2 2x=-4
Answer: x=-2
