Respuesta:
RPTA = 3, espero que te sirva :)
Explicación paso a paso:
el 4 se multiplica = 8x + 12 = 42 - 2x
8x + 2x = 42 - 12
10x = 30
x = 3
3 x 2 = 6 + 5 = 11
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Respuesta:
RPTA = 3, espero que te sirva :)
Explicación paso a paso:
el 4 se multiplica = 8x + 12 = 42 - 2x
8x + 2x = 42 - 12
10x = 30
x = 3
3 x 2 = 6 + 5 = 11