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2x+3x+5x-8x=72
2x=72
x=36
2x + 3x + 5x = 8x + 72
10x = 8x + 72
10x - 8x = 72
2x = 72
x = 72/2
x = 36
Respuesta.
x = 36
COMPROBAMOS LA SOLUCIÓN
2x+3x+5x=8x+72
2 (36) + 3 (36) + 5 (36) = 8 (36) + 72
72 + 108 + 180 = 288 + 72
360 = 360
La solución es correcta!