August 2018 2 52 Report
Tentukanlah langkah yang salah dalam penyelesaian persamaan dibawah ini. jenlaskan mengapa salah, kemudian tulislah penyelesaiannya yg benar.
a. 2x=11x+45
2x-11x=11x-11x+45
9x= 45
9x/9 = 45/9
x= 5
b. 5/2-y=2(y-3/2)
5/2-y-y=2y-y-3/2
5/2=y-3/2
5/2+3/2=y
y=8/2=4


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