Klr2291gmailcomgo Klr2291gmailcomgo Matemáticas contestada ME PODRIAN AYUDAR ES URGENTE a.-1/2 + ? = -1/2 B. 3/4 + ? = -3/10C. ? + 1/6 = -1D. ? + ? = -1E. 3/5× ? = 1/2F. 1/8 × ? = -3G. ? × -7 = 5/6