34-х:7=480:16
34-х:7=30
-х:7=30-34
-х:7=-4
х=-4*(-7)
х=28
3(m+2n)-6n+n+3(7m-1)=3m+6n-6n+n+21m-3=24m+n-3
11 15 112-15 97
27------- - 23 ------- = 3 ---------- = 3 ----- = х
101 101 101 101
7 12 108-12 96
29------- - 26 -------- = 2 ---------- = 2----- = х
102 102 102 102
0,00052 кг
7500 кг
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