Вопрос школьника по предмету Математика
Как упростить и решить это уравнение:
1,2m+3,9m-2,1m+1,3
m=0,9.
Ответ учителя по предмету Математика
1,2m+3,9m-2,1m+1,3;при m=0,9
1,2*0,9+3,9*0,9-2,1*0,9+1,3=(1,2+3,9-2,1)*0,9+1,3=3*0,9+1,3=2,7+1,3=4
Как упростить и решить это уравнение:
1,2m+3,9m-2,1m+1,3
m=0,9.
1,2m+3,9m-2,1m+1,3;при m=0,9
1,2*0,9+3,9*0,9-2,1*0,9+1,3=(1,2+3,9-2,1)*0,9+1,3=3*0,9+1,3=2,7+1,3=4
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