Răspunsuri

2014-11-05T18:22:16+02:00
+cand ai o ecuatie tu vrei sa separi necunoscuta in partea stanga iar nr fara nec le duci in partea dreapta
cand duci dintr-o parte in alta le schimbi semnul
din + in - si invers
din * in : si invers

307x19-[3x569+(X-1875)]=1
5833-[1707+(X-1875)]=1
5833-(1707+X-1875)=1
1707+X-1875=5833-1
1707+X-1875=5832
1707+X=5832+1875
1707+X=7707
X=7707-1707
X=6000
2014-11-05T18:29:48+02:00
307x19-[3x569+(X-1875)]=1
5833-[1707+(X-1875)]=1
1707+(x-1875)=5833-1
1707+(x-1875)=5832
x-1875=5832-1707
x-1875=4125
x=4125+1875
x=6000