October 2023 1 3 Report
tolong bgt ya di bantu buat pr penting buat bsk ( tolong jangan ngasal ya) makasih

a. 20a - (4a + 5) =
b. (3x - 4y) + (-5x + 7y)
c. (-a² + 3a) - (5a² (5a² - 7a)
d.. - (-ab + 5ac) + 3ab - 7ac ..​

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