El profesor se sorprenderá mucho al ver tu solución correcta😉
1 x 19 1 1 ---- + ----- + ------ + ------- + -- = 0 /87\ / 13\ 50*4/5 50*7/10 23 |--| |---| \10/ \250/
1/(87/10)+x/(13/250)+(19/50)/(4/5)+(1/50)/(7/10)+1/23 = 0
1/87/10+x/13/250+19/504/5+1/507/10+1/23 = 0
370901/560280 + 250*x/13 = 0
x = -370901/560280 / (250/13)
-4821713 x1 = --------- 140070000
x1 = -4821713/140070000
suma
-4821713 --------- 140070000
=
-4821713 --------- 140070000
producto
-4821713 --------- 140070000
=
-4821713 --------- 140070000
-4821713/140070000