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

The correct answer is:
C) isolating a variable in one of the equations.

Explanation:
In order to solve a system of equations using substitution, we must have one of the variables isolated; this is the only way we have something to substitute. If one of the variables is not already isolated, that must be our first step.

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adioabiola adioabiola · Answer 2 · 2022-05-04T10:17:49+02:00

The step which is most likely the first in solving a systematic of non-linear equations by substitution is; Choice C; Isolating a variable in one of the equations.

Steps to solve a system of nonlinear Equations

It follows from the task content that we identify which step is first while solving a system of non-linear equations.

On this note, such systems of equations with it's order not equal to 1 can be solved by first isolating a variable in one of the equations and then Substituting into the other equation.