х - 0,3 = 3\4х + 20 1\2. Created by KuleshovasonYana134. algebra-ru

х - 0,3 = 3\4х + 20 1\2...

KuleshovasonYana134 @KuleshovasonYana134

July 2022 2 30 Report

х - 0,3 = 3\4х + 20 1\2

Пкaшник 3/4х = 0,75х 20 целых 1/2 = 20,5
х - 0,3 = 0,75х + 20,5
х - 0,75х = 20,5 + 0,3
0,25х = 20,8
х = 20,8 : 0,25
х = 83,2
Проверка: 83,2 - 0,3 = 0,75 * 83,2 + 20,5
82,9 = 62,4 + 20,5
82,9 = 82,9

3 votes Thanks 2

prettypushkova

Verified answer

X-0,3= $\frac{3}{4}$ х + $20 \frac{1}{2}$
х- $\frac{3}{4}$ х = $20 \frac{1}{2}$ + 0,3
$\frac{1}{4}$ х = 20,8
х=20,8: $\frac{1}{4}$
x=83,2
Ответ: х=83,2

6 votes Thanks 4

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