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When is it best to solve a system of equations using substitution?​

2 Answers

1 vote

Answer:

Answer Below

Explanation:

It is best to use substitution if one of the variables is isolated or has a coefficient of 1 or -1.

User Yulieth
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Answer:

It is best to solve a system of equations using substitution when one of the equations isolates one of the variables, or when the coefficient of one of the variables is 1 or -1.

Explanation:

This makes it easier to substitute one variable for the other, allowing you to solve for the remaining variable. It is also a good idea to check the solution back in the original equations just to make sure it is a valid solution

User Daniel Tran
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