Сравни уравнения каждой пары; сравни их решения
x . 3 = 120 x + 90 = 160 75 . x = 75
x : 3 = 120 x - 90 = 160 75 + x = 75
x . 3 = 120 x + 90 = 160 75 . x = 75
x : 3 = 120 x - 90 = 160 75 + x = 75
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X=120:3 X=160-90 X=75:75
X=40 X=70 X=1
X:3=120 X-90=160 75+x=75
X=120*3 X=160+90 X=75-75
X=360 X=250 X=0