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23 July, 04:37

When solving a system by substitution, one should

A. look for coefficients that are reciprocals

B. solve for x or y in one equation first

C. look for coefficients that are the same or opposites

D. always multiply by - 1

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Answers (1)
  1. 23 July, 04:42
    0
    B, because to substitute for a variable you have to have an equation to substitute first.
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