Question

Решите уравнения
1)-8(3+х)+х=4
2)-6=-9(7+х)+4х
3)-8х+4(7+8х)=4х+7
4)-х+2(7-9х)=х-4
5)-7х+9(2+х)=-4х+3
6)-х+4(7-х)=-7х+5
7)х-3(1-7х)=2х+2