Which method is best for solving the system of equations below, where you can eliminate one variable term by adding the equations?

Consider 6x2 + 6x + 1. which term immediately tells you that this expression is not a perfect square trinomial? justify your answer

Jada has a monthly budget for her cell phone bill. last month she spent 120% of her budget, and the bill was 60$. what is jada’s monthly budget

What is the solution to the equation below? 3/x-2+6=square root x-2 +8