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1.- 3x-2 = 16
3x =16+2
3x =18
x = 18/3
x= 6
2.- x + 17 = 52
x = 52 - 17
x = 35
3.- 3a - 3 = 114
3a - = 114 + 3
3a = 117
3a = 39 Tandan!