Question

( 15,38x + 3x -2,18x ) : 2,16 = 7,5

Answer 1

Ответ:

16,20х=7,5*2,16

16,2х=16,2

Х=16,2:16,2

Х=1

Answer 2

Let's simplify the expression step by step:

$(15.38x + 3x - 2.18x) \div 2.16 = 7.5$

Combine like terms in the numerator:

$15.38x + 3x - 2.18x = 16.2x$

Now the expression becomes:

$\frac{16.2x}{2.16} = 7.5$

Now, divide 16.2 by 2.16:

$\frac{16.2}{2.16} = 7.5$

So, the equation is true:

$7.5x = 7.5$

Now, solve for $x$:

$x = \frac{7.5}{7.5}$

$x = 1$

Therefore, the solution to the equation is $x = 1$.