Ответ:
4x-x=8+4
3x=12
x=4
5x-10=3x-6
5x-3x=10-6
2x=4
x=2
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Ответ:
4x-x=8+4
3x=12
x=4
5x-10=3x-6
5x-3x=10-6
2x=4
x=2