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1/2 x + 3/5 x - 3/10 x - x = - 1950 multiplicamos todo por 10 para eliminar los denominadores
5 x + 6 x - 3 x - 10 x = - 19500
11 x - 13 x = - 19500
- 2 x = - 19500
x = - 19500/ - 2
x = 9750 es el sueldo de Jorge
buen día!