abbeybyrne abbeybyrne

18-09-2020
Mathematics

contestada

Choose which property of equality is demonstrated moving from step a to step b.
a. 3x + 12 = 6x - 21
b. 3x + 33 = 6x

Choose which property of equality is demonstrated moving from step a to step b a 3x 12 6x 21 b 3x 33 6x class=

Respuesta :

majorhaley23 majorhaley23

21-09-2020

Answer:

Addition

Step-by-step explanation:

You add -21 to 12. so it's addition

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