Question

5x +130 = 100x +40 

tìm x

Answer 1

5x+130=100x+40

5x-100x=40-130

-95x=-90

x=18/19

Answer 2

5x + 130 = 100x + 40

<=> 5x - 100x = 40 - 130

<=> -95x = -90

<=> 95x  = 90

<=>     x = \(\frac{90}{95}\)

<=>    x = \(\frac{18}{19}\)

Answer 3

\(5x+130=100x+40\)

\(100x-5x=130-40\)

\(95x=90\)

\(x=\frac{90}{95}\)

\(x=\frac{18}{19}\)

Vậy \(x=\frac{18}{19}\)

Tham khảo nhé

Answer 4

x = 18/19

Answer 5

5x + 130 = 100x + 40

100x - 5x = 130 - 40

95x = 90

x = 90 : 95

x = 90/95

Vậy x = 90/95

Answer 6

5x + 130 = 100x + 40

Ta có : 100x - 5x = 130 - 40

          ( 100 - 5 )x = 90

                     95x = 90

                        x = 90 : 95

                        x = 90/95

                        x = 18/19

                    Vậy x = 18/19