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3 years ago

6

8. 10a - [4{5a - 3(a - 1)} - 3 (4a - 3a + 1)]

1 answer:

Nonamiya [84]3 years ago

6 0

Step-by-step explanation:

Work with what is in the brackets first

10a-[4{5a-3(a-1)} - 3(4a-3a+1)]

=10a-[4{5a-3a+1-12a+9a-3}]

=10a-[4{-a-2}]

=10a-[-4a-8]

=10a+4a+8

=14a+8

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