Răspuns:
2. b)[198+(2646:X+4253):1079]:2-58=43
[198+(2646+X+4253): 1079] : 2-58=43
[198+(2646+4253X/ X *1 /1079)* 1/2-58=43
213642X+2646+4253/1079X *1/2-58=3
217895X+2646/1079X * 1/2 -58=43
217895X+2646/2158X = 43+58
217895X+2646/2158X=101
217895X=217958X-2646
-64X=2646
X=42