1)4(x-6)=x-9 2)6-3(x+1)=7-2x
3)6.8-1.3x=0.6x-2.7
4)(8x+3)-(10x+6)=9
5)0.3(6-2y)=4.5-0.7*(y+9)
Очень точно пожалуйста.
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