b. 5 ( 13-x ) <_ 8x - 2 (x-7)
A.2(4-3x)<4(x-5) dikalikan kedalam
8-6x<4x-20
-6x-4x<-20-8
-2x<-28
x<-28:-2
x<14
B.5 ( 13-x ) ≤ 8x - 2 (x-7)
5 ( 13-x ) ≤ 8x - 2 (x-7)
65-5x ≤ 8x-2x+14
-5x-6x≤14-65
-11x ≤ -51
x ≤-51: -11
x≤ 4,63 atau 4 7:11 dalam bentuk pecahan campuran
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b. 5 ( 13-x ) <_ 8x - 2 (x-7)
A.2(4-3x)<4(x-5) dikalikan kedalam
8-6x<4x-20
-6x-4x<-20-8
-2x<-28
x<-28:-2
x<14
B.5 ( 13-x ) ≤ 8x - 2 (x-7)
5 ( 13-x ) ≤ 8x - 2 (x-7)
65-5x ≤ 8x-2x+14
-5x-6x≤14-65
-11x ≤ -51
x ≤-51: -11
x≤ 4,63 atau 4 7:11 dalam bentuk pecahan campuran