121 :x =11
x=121:11
x=11
20+x=300+60
20+x=360
x=360-20
x=340
25x10-3
=250-3
=247
121 : x = 11
x = 121 : 11
x = 11
20 + x = 300 + 60
20 + x = 360
x = 360 - 20
x = 340
25 x 10 - 3 = 250 - 3
= 247
121:x=11
x=121:11
x=11
20+x=300+60
20+x=360
x=360-20
x=340
25*10-3
=250-3
=247
121 : x = 11 20 + x = 300 + 60 25 x 10 - 3 = 247 x = 121 : 11 20 + x = 360 x = 11 x = 360 - 20 x = 340