Explicación paso a paso:
18b - 11 + 9b + 2 = 180
27b = 189
b = 7
WXY = 9b + 2 = 65
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Explicación paso a paso:
18b - 11 + 9b + 2 = 180
27b = 189
b = 7
WXY = 9b + 2 = 65