Question

7-x/5=2+x/15
Срочно!!!!

Answer 1

Ответ:

0.75

Объяснение:

$7-\frac{x}{5}=2+\frac{x}{15}  \\-\frac{x}{5} -\frac{x}{15}=-7+2\\-\frac{3x}{15}-\frac{x}{15} =-5\\ -\frac{4x}{15} =-\frac{5}{1} \\\\\\\\\frac{4x}{15} =\frac{5}{1}$

4х*5=15*1

20х=15

$x =\frac{15}{20} =\frac{3}{4} = 0.75$