x +2015 - 305 = 9500
x + 2015 = 9500 + 305
x + 2015 = 9805
x = 9805 - 2015
x = 7790
k mình nhé !!!!
x=9500+305-2015
x=7790
nhớ tk cho mk nha
x + 2015 - 305 = 9500
x + 2015 = 9500 + 305
x + 2015 = 9805
x = 9805 - 2015
x = 7790
x + 2015 - 305 = 9500
x + 2015 = 9500 + 305
x + 2015 = 9805
x = 9805 - 2015
x = 7790
x + 2015 - 305 = 9500
x + 1710 = 9500
x = 9500 - 1710 = 7790
x + 2015 - 305 = 9500
x + 1710 = 9500
x = 9500 - 1710
x = 7790
Vậy x = 7790
x + 2015 - 305 = 9500
x + 2015 = 9500 + 305
x + 2015 = 9805
x = 9805 - 2015
x = 7790
Vậy x = 7790
♥♥ Chúc bn hok tốt nha ♥♥
x + 2015 - 305 = 9500
x + 2015 = 9500 + 305
x + 2015 = 9805
x = 9805 - 2015
x = 7790
x+2015-305=9500
x+2015=9500+305
x+2015=9805
x=9805-2015
x=7790
Vậy x= 7790