2.3(5-3m)+7.6(m-2)=-1.46
11.5-6.9m+7.6m-15.2=-1.46
-6.9m+7.6m=-1.46-11.5+15.2
0.7m=2.24 | ÷ 0.7
m=3.2
Ответ: 3.2
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объяснение:
2.3(5-3m)+7.6(m-2)=-1.46
11.5-6.9m+7.6m-15.2=-1.46
-6.9m+7.6m=-1.46-11.5+15.2
0.7m=2.24 | ÷ 0.7
m=3.2
Ответ: 3.2