[tex] \frac{x}{4} + \frac{x}{3} = \frac{x}{6} + 5[/tex]
[tex] \frac{2x}{3} - \frac{4x}{5} = \frac{x}{15} + 1[/tex]
[tex] \frac{3x}{8} - \frac{x}{6} = \frac{x}{12} - 1[/tex]
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Ответ:
Пошаговое объяснение:
x/4 + x/3 = x/6 + 5 |*12
3x + 4x = 2x + 60
7x = 2x + 60
7x - 2x = 60
5x = 60
x = 60:5
x = 12
=================
(2x)/3 - (4x)/5 = x/15 + 1 |*15
10x - 12x = x + 15
-2x = x + 15
x + 2x = -15
3x = -15
x = -15:3
x = -5
=============
(3x)/8 - x/6 = x/12 - 1 |*24
9x - 4x = 2x - 24
5x = 2x - 24
5x - 2x = -24
3x = -24
x = -24:3
x = -8