Jawabanmu

2014-09-08T17:01:05+07:00
1. (5x+3) - (x-1) = 5x+3-x+1 = 4x+4
2. (4y-8) - (2y+15) = 4y-8-2y-15 = 2y-23
3. (5z+3) - (2z-7) = 5z+3-2z+7 = 3z+10
4. (6x+y) - (x-y) = 6x+y-x+y = 5x+2y
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2014-09-08T17:22:23+07:00
(5x+3) + (x-1)
5x^-5x+3x-3
5x^-2x-3

(2y+15) - (4y-8)
-8y^-16y-60y-120
-8y^-76y-120

(5z+3) + (2z-7)
10z^-35z+6z-21
10z^-29z-21

(x-y) -(6x+y)
-6x^+xy-6xy-y
-6x^-5xy-y


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