c5h11no2
c5h11no2
09-04-2015
Mathematics
contestada
Please help!!!!!!!!!!!!!!!!!!!!
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AyaZ
AyaZ
09-04-2015
[tex]\left \{ {{6a+11b=36} \atop {4a-2b=-32}} \right. \\ \left \{ {{6a+11b=36} \atop { (-\frac{3}{2}) *(4a-2b=-32)}} \right.[/tex]
[tex](6a+11b=36)+ (-6a+3b=48)= 6a-6a+11b+3b=36+48 \\ 14b=84 \\ b=6[/tex]
[tex]4a-2(6)=-32 \\ 4a=-32+12=-20 \\ a=-5[/tex]
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