Răspuns:
g) 2x+1/2=-0,75+1/3x
0,75=75/100
2x+1/2=75/100+1/3x
2x/1+1/3x=1/2+75/100
2x/1+1/3=1•100/2•100+75•2/100•2=
2x/1+1/3x=100/200+150/200
2x/1+1/3x=250/200[tăiem câte un zero de la fiecare
2x/1+1/3x=25/20[simplifica cu 5]
2x/1+1/3x=5/4
2x+3x=5/4
5x=5/4
h)6+5(3x-2)/2=13-2(2x-4)
6+18x-2/2=13-4x-4
18x+4x=6+4-2/2
2/2=1
22x=10-1
22x=9
Explicație pas cu pas:
