Simplify: 2 [a – 3 a + 5 a – 2) + 7 ] - Vidyadip

Question

Simplify: 2 [a – 3 {a + 5 {a – 2) + 7}]

✓

Answer

2 [a – 3 {a + 5 {a – 2) + 7}]
= 2 [a - 3 {a + 5a - 10 + 7}]
= 2 [a - 3a - 15a + 30 - 21]
= 2a - 6a - 30a + 60 - 42
= 2a - 36a + 60 - 42
= -34a + 18

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