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1. Sederhanakan bentuk 3x+3y-4x-5y
jawab: (3-4)x +(3 - 5)y
= -x -2y
2. Sederhanakan bentuk 7a(1+b) - 3b(1+a)
jawab : [ 7a(1) + 7a(b) ] - [ 3b(1) + 3b(a)]
= [7a+7ab] - [ 3b+3ab]
= 14ab - 6ab
= 8ab
3.
4. Sederhanakan bentuk
5. Sederhanakan bentuk