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3x - x = 6 + 2
2x = 8
x = 8/2
x = 4
Solución :
x = 4
3x-x = 6+2
2x = 8
x = 8/2
x = 4
Comprobémoslo:
3*4 -2 = 4+6
12-2 = 10 comprobado.
Saludos.....