Respuesta:
4x +4+9x+18=12(x+2)
13x+22=12x+24
13x-12x=24-22
x=2
eso es todo
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Verified answer
Respuesta:
4x +4+9x+18=12(x+2)
13x+22=12x+24
13x-12x=24-22
x=2
eso es todo