2 (x-3) - 5 (x-7) = 5 - (x+6)

2 (2x-3) - 3 (7-5x) = 4 + (2-x)

3 (2x-1) - 2 (6-3x) = 5 + (4-x)

Question

Алгебра

Стина

20 июля, 18:00

2 (x-3) - 5 (x-7) = 5 - (x+6)

2 (2x-3) - 3 (7-5x) = 4 + (2-x)

3 (2x-1) - 2 (6-3x) = 5 + (4-x)

+1

Ответы (1)

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Олюша · Answer 1

2 (x-3) - 5 (x-7) = 5 - (x+6)

2x-6-5x+35=5-x-6

2x-5x+x=5-6+6-35

-2x=-30

x=-30: (-2)

x=15

2 (2x-3) - 3 (7-5x) = 4 + (2-x)

4x-6-21+15x=4+2-x

4x+15x+x=4+2+6+21

20x=33

x=33/20

c=1.65

2 (x-3) - 5 (x-7) = 5 - (x+6)2 (2x-3) - 3 (7-5x) = 4 + (2-x)3 (2x-1) - 2 (6-3x) = 5 + (4-x)

2 (x-3) - 5 (x-7) = 5 - (x+6)

2 (2x-3) - 3 (7-5x) = 4 + (2-x)

3 (2x-1) - 2 (6-3x) = 5 + (4-x)