Допоможіть бідь ласка (дам 60 балів)
1/2(4-3 1/2x)=1 1/4 x -1/2
5/7(0,21-1,4x)-1=4/9(0,36-4,5x)
1/2(4-3 1/2x)=1 1/4 x -1/2
5/7(0,21-1,4x)-1=4/9(0,36-4,5x)
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Answers & Comments
Пошаговое объяснение:
1/2(4 - 3 1/2х) = 1 1/4х - 1/2
1/2(4 - 7/2х) = 1 1/4х - 1/2
2 - 7/4х = 1 1/4х - 1/2
-1 3/4х - 1 1/4х = -1/2 - 2
-2 4/4х = -2 1/2
-3х = - 5/2
х = -5/2 : (-3)
х = -5/2 * (-1/3)
х = 5/6