решите уравнения
0.4х+(-х-1.8)=-2(0.5х-0.3)
[tex] \frac{у-3}{4} [/tex]=[tex] \frac{5-2у}{-9} [/tex]
0.4х+(-х-1.8)=-2(0.5х-0.3)
[tex] \frac{у-3}{4} [/tex]=[tex] \frac{5-2у}{-9} [/tex]
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