El profesor se sorprenderá mucho al ver tu solución correcta😉
(x - 3)*98100 -------------*981 881 ----------------- - 40 = 0 100
(x-3)*98100/881*(981/100)+(120-160) = 0
x*98100/881-3*98100/881981/100+120-160 = 0
-2922323/881 + 962361*x/881 = 0
x = 2922323/881 / (962361/881)
2922323 x1 = ------- 962361
x1 = 2922323/962361
suma
2922323 ------- 962361
=
2922323 ------- 962361
producto
2922323 ------- 962361
=
2922323 ------- 962361
2922323/962361