Răspunsuri

2014-06-10T18:34:37+03:00
X+y=1000

x-100= 2y
x=2y+100

2y+100+y=1000
3y=1000-100
3y=900
y=300

x=1000-300
x=700
putin mai usor poti sa faci sunt in clasa a treia si nu am invatat asa
2014-06-10T18:39:06+03:00
X+y=1000
x-100 = 2y
x=2y+100
2y+100+y=1000
3y=1000-100
3y=900
y=900:3
y=300

x= 2x300 + 100
x=600+100
x=700