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1-5x-10+7x=1-8x
2x-9=1-8x
2x+8x=1+9
10x=10
x=10/10
x=1
1 - 5x - 10 + 7x = 1 - 8x
8x - 5x + 7x = 1 - 1 + 10 Agrupación de términos semejantes
10x = 10 Suma algebraica de términos semejantes
x = 10/10
x=1