Respuesta:
9
Explicación paso a paso:
2x + 2 = 40
2x = 40 - 2
2x = 38
x = 38 / 2
x = 19
Entonces:
19 - 10 = 9
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Respuesta:
9
Explicación paso a paso:
2x + 2 = 40
2x = 40 - 2
2x = 38
x = 38 / 2
x = 19
Entonces:
19 - 10 = 9