1)15×(x+2)-30=12x
2)6×(1+5x)=5×(1+6x)
3)3y+(y-2)=2×(2y-1)
4)6y-(y-1)=4-5y
Nomer 149
3)13-4.5y=2×(3.7-0.5y)
4)5.6-7y=-4×(2y-0.9)+2.4

СРОЧНО 15-25БАЛЛОВ
У МЕНЯ 20-30МИНУТ​
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