Penjumlahan dan pengurangan aljabar 1. (-3p+7q-5r)+(8p-4q+10r) 2.(-22x-8y+10z)-(-10x-9y+15z) 3.(8a-3b+5c)+(-5a+9b)-(7b-8b) Plis... Kak Bantuin....Besok Dikumpul

1. (-3p+7q-5r)+(8p-4q+10r)
-3p+7q-5r + 8p-4q+10r
-3p+8p+7q-4q-5r+10r
= 5p+3q+5r

2. (-22x-8y+10z)-(-10x-9y+15z)
-22x-8y+10z + 10x+9y-15z
-22x+10x-8y+9y+10z-15z
= -12x+y-5z

3.(8a-3b+5c)+(-5a+9b)-(7b-8b)
8a-3b+5c - 5a+9b -7b+8b
8a-5a-3b+9b-7b+8b+5c
= 3a+6b+5c