1) 8a - (2a - (4 - 3a)) = 8a - (2a - 4 + 3a) = 8a - (5a - 4) = 8a - 5a + 4 = 3a + 4
2) - (12x + 3y) + 6(2x - y) = - 12x - 3y + 12x - 6y = - 9y
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Answers & Comments
1) 8a - (2a - (4 - 3a)) = 8a - (2a - 4 + 3a) = 8a - (5a - 4) = 8a - 5a + 4 = 3a + 4
2) - (12x + 3y) + 6(2x - y) = - 12x - 3y + 12x - 6y = - 9y
Verified answer
8a-(2а-4+3а)=8а-2а+4-3а=3а+4-12х-3у+12х-6у=-9у