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26 September, 03:02

Shown here mathematical step. Identify the mathematical reason or property used to simplify from the first step to the second step.

7 (A+13)

7A+91

+2
Answers (1)
  1. 26 September, 04:37
    0
    It's using the distributive method. 7 x a is 7A and 7 x 13 is 91, therefor it is 7A+91.
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