Răspuns :
2x+3x=13,5 12x+12x=24
5x+13,5 24x=24
x=15,3 : 5 x=24:24
x=2,7 x=1
ax2=14 4a+4a=16
a=14:2 8a=16
a=7 a=16:8
a=2
12x+2=26
12x=26-2 19x+x=100
12x=24 20x=100
x=24:12 x=100:20
x=2 x=50
5x+3x=80
8x=80
x=80:8
x=10
N-am reusit sa-ti fac mai multe pentru ca trebuie sa merg la scoala.
5x+13,5 24x=24
x=15,3 : 5 x=24:24
x=2,7 x=1
ax2=14 4a+4a=16
a=14:2 8a=16
a=7 a=16:8
a=2
12x+2=26
12x=26-2 19x+x=100
12x=24 20x=100
x=24:12 x=100:20
x=2 x=50
5x+3x=80
8x=80
x=80:8
x=10
N-am reusit sa-ti fac mai multe pentru ca trebuie sa merg la scoala.
x+3=12 x+10=23 3x+x=16 x+4=8 3x+4x+x=16+8 81x-61x=120
x=12-3 x=23-10 4x=16 x=8-4 8x=24 20x=120
x=9 x=13 x=16:4 x=4 x=24:8 x=120:20
x=4 x=3 x=6
6x+12=30 59x-23x=288 99x+x=1000-300 21x+x+4x=76+80
6x=30-12 36x=288 100x=700 26x=156
x=18:6 x=288:36 x=700:100 x=156:26
x=3 x=8 x=7 x=6
x=12-3 x=23-10 4x=16 x=8-4 8x=24 20x=120
x=9 x=13 x=16:4 x=4 x=24:8 x=120:20
x=4 x=3 x=6
6x+12=30 59x-23x=288 99x+x=1000-300 21x+x+4x=76+80
6x=30-12 36x=288 100x=700 26x=156
x=18:6 x=288:36 x=700:100 x=156:26
x=3 x=8 x=7 x=6