Question

(5×5+6×6-y)+6×5-5×10=9:3

Answer 1

( 5 x 5 + 6 x 6 - y ) + 6 x 5 - 5 x 10 = 3
(25 + 36 - y ) + 6 x 5 - 5 x 10 = 3
61 - y + 30 - 50 = 3
y +30 - 50= 61 - 3 =58
y + 30 =58 + 50=108
y + 30 =108
y=108-30
y=78

Answer 2

(25+36-y)+6x5-5x10=3
(61-y)+30-50=3
(61-y)+30=50-3
(61-y)+30=47
61-y=47+30
61-y=77
     y=77:61
     y=1,26
Sper ca te-am ajutat !