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4x + 3x = 24x - 204
7x = 24x - 204
204 = 24x - 7x
204 = 17x
204/17 = x
12 = x
x = 12
Respuesta.
x = 12
términos independientes de un lado y literales de otro (signo contrario)
4x+3x-24x=-204
7x-24x=-204
-17x=-204
x=-204/-17
x=12
4(12)+3(12)=24(12)-204
48+36=288-204
84=84