6 класс (ПЖ, решите все, дам 20 баллов!)

1) 5(x-4)=3x-10
2) 4y+2=3(10-y)
3) 7(x-4)=5(x+4)
4) 7(x+3)-2(x-5)=8
5) 1.1-0.1z=-1.9-0.7z
6) -0.2x+4=-2+0.1x
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