Ответ:
Пошаговое объяснение:
1)
-4x - 11 = -5x - 12
5x - 4x = -12 + 11
x = -1
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2)
10x - 5 + x = 6
11x - 5 = 6
11x = 6 + 5
11x 11
x = 1
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3)
3x + 11 = 5x + 21x - 35
3x + 11 = 26x - 35
26x - 3x = 11 + 35
23x = 46
x = 46 : 23
x = 2
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4)
3x - 20x - 8 = 21x - 6
-17x - 8 = 21x - 6
-17x - 21x = -6 + 8
-38x = 2
x = 2 : (-38)
x = -1/19
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5)
17 - 6x + 10 - 20x + 5 = 6x
-26x + 32 = 6x
6x + 26x = 32
32x = 32
x = 1
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6)
-11x + 3x - 9 = -8x - 9
-8x - 9 = -8x - 9
-8x + 8x = -9 + 9
0 = 0
уравнение имеет множество корней