What is the missing reason in step 3
1) substitution property of equality

To solve the system of equations below, pedro isolated the variable y in the first equation and then substituted it into the second equation. what was the resulting equation? { 5y=10x {x^2+y^2=36

Which of the following best describes the delian problem?

Over the course of a month, a person's weight decreases. what type of relationship is this? a. positive relationship