Which is most likely the first step in solving a system of nonlinear equations by substitution?
a. substituting a number for one of the variables
b. substituting one equation into the other equation
c. isolating a variable in one of the equations
d. taking the square root of both sides of one of the equations

C.Isolating a variable in one of the equations

Step-by-step explanation:

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)

answer: sorry i dont really know but can we talk all my friends r gone and im bored

step-by-step explanation: