Respuesta:
1) 7
2) 51
3) 7
Explicación paso a paso:
1) x + (- 9) = -2
(+) . (-) = (-)
x - 9 = -2
x = -2 + 9
x = 7
2) x - 29 = 2(11) [el 5° número primo es 11]
x-29 = 22
x = 51
3) 2x + 1 = 15
2x = 14
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Respuesta:
1) 7
2) 51
3) 7
Explicación paso a paso:
1) x + (- 9) = -2
(+) . (-) = (-)
x - 9 = -2
x = -2 + 9
x = 7
2) x - 29 = 2(11) [el 5° número primo es 11]
x-29 = 22
x = 51
3) 2x + 1 = 15
2x = 14
x = 7