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3 years ago

PLS HELP WILL MARK YOU BRAINLIEST, NO FAKE ANSWERS!!

Mathematics

1 answer:

Makovka662 [10]3 years ago

3 0

Answer:

1. if x + 5 = 12, then x = 7

:Subtraction property of equality

2. If x + y = 20, and y = 5, then x + 5 = 20.

:Substitution property of equality

3. If 2x3 = 11, then 11 = 2x - 3.

:Symmetric property of equality

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