Explicación paso a paso:
2x+9=13
x=13-9÷2
x=4÷2
x=2
Respuesta:
2x + 9 = 13
2x = 13 - 9
2x = 4
x = 2
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Explicación paso a paso:
2x+9=13
x=13-9÷2
x=4÷2
x=2
Respuesta:
2x + 9 = 13
2x = 13 - 9
2x = 4
x = 2