Question

x+30%x+=1,3

giải hộ mik  bài này với. mik cảm ơn trc

Answer 1

\(#V\)

\(⇔ x ( 1 + 0 , 3 ) = 1 , 3\)

\(⇔ x .1 , 3 = 1 , 3\)

\(⇔ x = 1 , 3 : 1 , 3\)

\(⇔ x = 1\)

Answer 2

x+30%.x=-1,3

=>x+.x=-1,3

=>x.()=-1,3

=>x.1,3=-1,3

=>x=-1,3:1,3

=>x=-1

Answer 3

x + 30% + x = 1,3

x + 3/10 + x = 1,3

2x + 3/10 = 1,3

2x = 1,3 - 3/10

2x = 1

x = 1/2

x = 0,5. 

Answer 4

\(=>x+x\times\dfrac{1}{3}=1,3=>x\left(1+\dfrac{1}{3}\right)=1,3\)

\(=>x\times\dfrac{4}{3}=1,3=>x=1,3:\dfrac{4}{3}=\dfrac{39}{40}\)

Answer 5

x + 30% + x = 1,3

x + 3/10 + x = 1,3

2x + 3/10 = 1,3

2x = 1,3 - 3/10

2x = 1

x = 1/2

x = 0,5.