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vanessanovogomes vanessanovogomes
  • 18-02-2017
  • Mathematics
Answered

How to use substitution

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Anonymous Anonymous
  • 18-02-2017

The method of solving "by substitution" works by solving one of the equations (you choose which one) for one of the variables (you choose which one), and then plugging this back into the other equation, "substituting" for the chosen variable and solving for the other. Then you back-solve for the first variable.

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yahiyawarda123
yahiyawarda123 yahiyawarda123
  • 18-02-2017

FIRST SOLVE FOR EQUATION,THEN  SUBSTITUTE THE EQUATION FROM STEP 1. SOLVE FOR THIS EQUATION THEN SOLVE FOR THE VARIABLE.

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