Respuesta:
Explicación paso a paso:
a) - 8 + x = 42
x = 42 + 8
x = 50
b) x + 50 = - 62
x = - 62 - 50
x = - 112
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Respuesta:
Explicación paso a paso:
a) - 8 + x = 42
x = 42 + 8
x = 50
b) x + 50 = - 62
x = - 62 - 50
x = - 112