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17x-10x=2+5
7x=7
x=1
17x - 5 = 5. (2x + 1) - 3
17x - 5 = 10x + 5 - 3
17x - 10x = 5 - 3 + 5
7x = 7
x = 7 ÷ 7
x = 1 → respuesta