Question

0,3x + 1.5 = - 1.8
-x - 9 = 58 : ( x + 3)
(m - 132) : 7 + 9 = - 11
  x - 10 : ( X - 1 ) = 4

Answer 1

0,3х+1,5=-1.8

0.3х=-1.8-1.5

0.3х=-3.3

х=-11

 

-х-9=58:(х+3)

 

 

Answer 2

х=-1.8-1.5/0.3
х=-11.
2.-х=58:(х+3)+9
-х=58:(х+3)+9*(х+3):(х+3)
-х=85:(х+3)
-5х=85
х=-17.
3.m-132=-20*7
m=272.
4)4(x-1)=x-10
4x-4=x-10
x=-2