Seudónimo Seudónimo
  • 08-02-2017
  • Mathematics
contestada

How can i do substitution while multiplying

Respuesta :

wolfuptime
wolfuptime wolfuptime
  • 08-02-2017
You multiply then substitute. 

for instance- 2-4x5
2-20
-18

or

3x6-7
18-7
11

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