Question

x+2x+3x+4x+5x=150

Answer 1

\(x+2x+3x+4x+5x=150\)

\(\Leftrightarrow1x+2x+3x+4x+5x=150\)

\(\Leftrightarrow\left(1+2+3+4+5\right)x=150\)

\(\Leftrightarrow15x=150\)

\(\Leftrightarrow x=\frac{150}{15}\)

\(\Leftrightarrow x=10\)

Vậy x = 10

Answer 2

x + 2x + 3x + 4x + 5x = 150

                            15x = 150

                               x = 10

Vậy x = 10

Answer 3

Ta có:

x + 2x + 3x + 4x + 5x = 150

x .( 1 + 2 + 3 + 4 + 5 ) = 150

x .15 = 150

x = 150 : 15

x = 10

Answer 4

x + 2x + 3x + 4x + 5x = 150

1x + 2x + 3x + 4x + 5x = 150

15x = 150

x = 150 : 15

x = 10

Answer 5

\(x+2x+3x+4x+5x=150\)

\(\Rightarrow1x+2x+3x+4x+5x=150\)

\(\Leftrightarrow15x=150\)

\(\Leftrightarrow x=150:15\)

\(\Leftrightarrow x=10\)