Question

1)5(x-4)
2)9-7(x+3)-(5-6x)
3)(7x+9)-(11-7)
4)5(x-2)+4(x+3
5)-(x-7)+2(x-4

Answer 1

1)5(x-4)=5х-20
2)9-7(x+3)-(5-6x)= 9-7х-21-5-6х=-17-х или -(17+х)
3)(7x+9)-(11-7)=7х+9-11+7=7х +5
4)5(x-2)+4(x+3)=5х-10+4х +12=9х+2
5)-(x-7)+2(x-4)=-х+7+2х-8=х-1