Which Method Should Be Used to Solve the System? Explain $$\begin{array} { l } x ^ { 2 } - y ^ { 2 } = 49 \\x - 4 y = 9\end{array}$$

question 210

Essay

Which method should be used to solve the system? Explain your answer, including a description of the first step.
- $$\begin{array} { l } x ^ { 2 } - y ^ { 2 } = 49 \\x - 4 y = 9\end{array}$$

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Definitions:

PLC System

A system used in industrial automation to control machinery and processes, consisting of programmable logic controllers.

MCR Instruction

Stands for "Master Control Reset", an instruction in PLC programming used to turn off a defined range of outputs when certain conditions are met.

Program Control

Program Control refers to mechanisms or methods employed within software to direct the flow of execution, determining the sequence in which various instructions or program elements are processed.

Frictional Unemployment

Unemployment that occurs when people transition between jobs, including graduates looking for their first job.