Question

[x]+[2x]+[3x]= 15
find no of solutions of x satisfying the equation

Answer 1

Here is your answer dear⬇️⬇️

x + 2x + 3x = 15

3x + 3x = 15

6x = 15

x = $\frac{15}{6}$

x = 2.5



There is only 1 solution.


Refer to the attachment.

Since in the x-axis, there is only one point where the graph has a line passing through. So x has only 1 solution which is 2.5

Answer 2

$\bf{\mathfrak{Solution::}}$


$= > x + 2x + 3x = 15 \\ \\ = > 6x = 15 \\ \\ = > x = \frac{15}{6} = \frac{5}{2} = 2.5$

$\bf{\mathfrak{thank \: you::}}$