1 - 3 · (x - 5) = 7 · (3 - 2x)
1 - 3x + 3 · 5 = 7 · 3 - 7 · 2x
1 - 3x + 15 = 21 - 14x
16 - 3x = 21 - 14x
- 3x + 14x = 21 - 16
11x = 5
x = 5/11
Ответ: x = 5/11.
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Answers & Comments
-3x+14x=-15-1+21
9x=5
X=5/9
Verified answer
1 - 3 · (x - 5) = 7 · (3 - 2x)
1 - 3x + 3 · 5 = 7 · 3 - 7 · 2x
1 - 3x + 15 = 21 - 14x
16 - 3x = 21 - 14x
- 3x + 14x = 21 - 16
11x = 5
x = 5/11
Ответ: x = 5/11.