1. 9+3 = x-2x-3x-2x
12 = -x-x
12 = 2x
6 = x
2. - 2x-3x+8x-4x = -7 +10
- 5x +8x - 4x = 3
3x- 4x = 3
X = 3
Explicación paso a paso:
Aaa
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1. 9+3 = x-2x-3x-2x
12 = -x-x
12 = 2x
6 = x
2. - 2x-3x+8x-4x = -7 +10
- 5x +8x - 4x = 3
3x- 4x = 3
X = 3
Explicación paso a paso:
Aaa