Question

To solve a linear equations in one variable we use elimination method or

Answer 1

`\displaystyle Substitution`

Step-by-step explanation:

Elimination and Substitution are two methods to use when solving systems of equations in two and three variables
`\displaystyle [z, y, and\:x].`With Elimination, you decide on which pair of variables you want to eradicate so they are set to zero, whereas Substitution is mainly used when one variable is automatically isolated. If not, then you must manually decide on which variable to isolate as well as the equation you want to wourk.

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