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Mathematics, 17.01.2020 22:31 tink921

Identify the mathematical property, operation, or idea that justifies each sequence of expressions below. then find the value of the expression.
a.
7β‹…2+4βˆ’2(7+3)
7β‹…2+4βˆ’2(7)βˆ’2(3)
7β‹…2βˆ’7(2)+4βˆ’2(3)
b.
6β‹…3+3β‹…4βˆ’8
18+12βˆ’8
18βˆ’8+12
c.
3^2+5(1βˆ’3)+4β‹…5+1
3^2+4β‹…5+1+5(βˆ’2)
9+20+1βˆ’10
d.
(8+(βˆ’12))+10+2
8+(βˆ’12+10+2)

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