Question

x+30%x=-1.3

 

 

Answer 1

x+30%x=-1,3

=> x.(30%+1)=-1,3

=> x.1,3        =-1,3

=> x              =-1,3:1,3

=> x              =-1

Chúc bạn học tốt :)) !!!!!!!!!!!!

Answer 2

\(x+30\%=-1,3\)

=>\(x+\frac{3}{10}=-1,3\)

=>\(x=-1,3-\frac{3}{10}=\frac{-13}{10}-\frac{3}{10}=\frac{-16}{10}=-1,6\)

Vậy x=-1,6

Answer 3

x + 30%.x=-1/3

x+ 3/10.x = -1/3 

x.(1+3/10)=-1/3

x.(10/10 + 3/10) = -1/3

x. 13/10 = -1/3

x = -1/3 : 13/10

x=-1/3.10/13

x= -10/39

k nha

Answer 4

=-1,6 k nha

Answer 5

\(x+30\%x=-1,3\)

=>\(x+\frac{3}{10}x=-1,3\)

=>\(\left(1+\frac{3}{10}\right).x=-1,3\)

=>\(\frac{13}{10}x=-1,3\Rightarrow1,3x=-1,3\Rightarrow x=\frac{-1,3}{1,3}=-1\)

Vậy x=-1

Answer 6

x-25%x=1\2

Answer 7

=-1 k nha

Answer 8

x+30%x=-1.3 30%x=-1.3-x 30%+(-1.3)=x => x=-1