Автор - ivan135qq

0.4(x-3)=0.5(4+x)-2.5 помогите

Ответ

Автор - ОУКС88
0.4х-1.2=2+0.5х-2.5
0.4х-0.5х= -0.5+1.2
-0.1х=0.7
х= -7

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