Question

помогите решить уравнение бесплатно 9,625-15:х+4=7,125

Answer 1

$9,625 - frac{15}{x+4} = 7,125$

$frac{15}{x+4} = 9,625 - 7,125$

$frac{15}{x+4} = 2,5$

$frac{15}{(x+4)*15} = frac{2.5}{15}$

$frac{1}{(x+4)} = frac{2.5}{15}$

$x+4 = frac{15}{2.5}$

x + 4 = 6 

x = 6 - 4

x = 2

ПРОВЕРКА

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9,625-15/(2+4) = 7,125

9,625 - 15/6 = 7,125

9,625 - 2,5 = 7,125

7,125 = 7,125

 

 

Answer 2

$9,625-15:(x+4)=7,125$

 

$9,625-frac{15}{x+4}=7,125$

 

$frac{15}{x+4}=9,625-7,125$

 

$frac{15}{x+4}=2,5$

 

$x+4=15:2,5$

 

$x+4=6$

 

$x=6-4$

 

$x=2$

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$9,625-15:(2+4)=7,125$ (это проверка)

 

$9,625-15:6=7,125$

 

$9,625-2,5=7,125$

 

$7,125=7,125$