Respuesta :
Answer:
X=83/2=41.5
Step-by-step explanation:
To solve this problem, first, you have to isolate x on one side of the equation.
2x-71+71=12+71 (First, add 71 from both sides.)
12+71 (Solve.)
12+71=83
2x=83
2x/2=83/2 (Then, divide by 2 from both sides.)
83/2 (Solve.)
83/2=41.5
x=83/2=41.5
So, the correct answer is x=83/2=41.5.