April 2019 1 19 Report
Tentukan hasil perjumlahan bentuk al jabar berikut
a.(13a - 8b)+(21a + 9b)=???
b.(15i - 14j + 13k) + (-30i - 45 j + 51k)=???
c.(3x - 17 y +35z) + (4x + 23 - 9z )=???

pakai caranya ya!

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