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5(5x-10y=-6)=25x-50y=-30
10(10x+5y=6)=100x+50y=60
ahora sumas las dos
ecuaciones finales
25x-50y=-30
100x+50y=60
125x=30
ahora despejas X
x=30/125=0.24
x=0.24
10(-6+10'y/5)+5y=6 x=-6+10(1.9)/5
-60+10y+25y=6 x=2.6
-60+35y=6
35y=66
y=66/35
y=1.9