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= 25a + b
2. (15i + 14b + 13k) + (-30i - 45j + 51k)
= -15i + 14b - 45j + 64k
3. Penjumlahan (3 - 17x +35z ) dan (4x + 23y - 9)
= (3 - 17x + 35z) + (4x + 23y - 9)
= -6 - 13x + 23y + 35z
4. (42n + 35m + 7) - (50m - 20n + 9)
= 22n - 15m - 2
5. pengurangan (5x + 3) oleh (x - 1)
= (5x + 3) - (x - 1)
= 4x + 4
6. pengurangan (4y - 8) dari (2y + 15z)
= (2y + 15z) - (4y - 8)
= -2y + 15z + 8
7. pengurangan 5z+3 oleh 2z -7
= (5z + 3) - (2z - 7)
= 3z + 10
8. pengurangan 6x +4 dari x-y
= (x - y) - (6x + 4)
= -5x - y - 4