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10x - 90 - 45 + 54x = 8x - 2 + 5 + 10x
64x - 135 = 18x + 3
64x - 18x = 3 + 135
46x = 138
x = 138/46
x = 3
El valor de x es 3
10x - 90 - 45 + 54x = 8x - 2 + 5 + 10x
Paso todas las X de un lado y los términos independientes del otro
10x + 54x - 8x - 10x = -2 + 5 + 45 + 90
46x = 138
x = 138/46
x = 3