September 2018 1 143 Report
Tentukanlah jumlah dari
a.5x +3y dan 2x-3y
b.4a+b-3c-d dan 2a+3b-2c+3d
c.3a+5b+3c+6d dan 6a-7b-7c-2d
d.5p+2r-3s+6t dan 7p-2r-3s-6t
e.4x-2y-4z-8 dan 4x +2y+5z+8

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