Ответ:
Пошаговое объяснение:
a)
2(3 - x) + 7x = 4 - (3x + 2)
6 - 2x + 7x = 4 - 3x - 2
6 + 5x = 2 - 3x
5x + 3x = 2 - 6
8x = -4
x = -4 : 8
x = -0,5
=====================
x/3 + (x - 1)/5 = 1 |*15
5x + 3(x - 1) = 1*15
5x + 3x - 3 = 15
8x - 3 = 15
8x = 15+3
8x = 18
x = 18 : 8
x = 2,25
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Answers & Comments
Ответ:
Пошаговое объяснение:
a)
2(3 - x) + 7x = 4 - (3x + 2)
6 - 2x + 7x = 4 - 3x - 2
6 + 5x = 2 - 3x
5x + 3x = 2 - 6
8x = -4
x = -4 : 8
x = -0,5
=====================
x/3 + (x - 1)/5 = 1 |*15
5x + 3(x - 1) = 1*15
5x + 3x - 3 = 15
8x - 3 = 15
8x = 15+3
8x = 18
x = 18 : 8
x = 2,25