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avanturin [10]
3 years ago
12

If m A= m B and m A+mC = D, then

Mathematics
1 answer:
rusak2 [61]3 years ago
3 0

Answer: Substitution

Step-by-step explanation:

Because you know A is equal to B, you can substitute A for B in any mathematical equation. Essentially, you are switching mA $ mB.

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