Question

1) 9Х+(7Х+5)-(2Х-3)=Х+47 3) Х-15,5+8Х -(13х+16,5)=12х
2) 3Х-(8+9Х)-(5Х-4)=-7Х 4) 6х-(2х+13) - (х-7)=15х

Answer 1

1)9x+7x+5-2x+3=x+47
3x=39
x=39:3
х=13

Answer 2

=))я рада

Answer 3

взаимно))

Answer 4

4)6х-2х-13-х+7=15х

Answer 5

12х=-6

Answer 6

х=-0,5