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caranya: 3x+10 = 5x-3
3x- 5x =-10-3
-2x =-13
x =-13/-2
x = 6.5
jadi x= 6.5
2) 2(x-1) + 3(x-2) - 1/2(x-1) = 2
caranya : 2(x-1) + 3(x-2) - 1/2(x-1) = 2
2x - 2 + 3x -6 - 0.5 - 0.5 =2
2x-3x = 2+2-(-5)+0.5+0.5
-1x = 11
x = 11/-1
= -11
jadi x= -11