Răspuns :
7 (2x-6)+16=72
7 (2x-6)=72-16
7 (2x-6)=56
2x-6=56:7
2x-6=8
2x=6+8
2x=14
x=14:2
x=7
36:(x-3)=4
x-3=36:4
x-3=9
x=9+3
x=12
(2x +5):7=9
(2x+5)=6×9
2x+5=54
2x=54-5
2x=49
x=49:2
x=24.5
Sper că te-am ajutat.
7 (2x-6)=72-16
7 (2x-6)=56
2x-6=56:7
2x-6=8
2x=6+8
2x=14
x=14:2
x=7
36:(x-3)=4
x-3=36:4
x-3=9
x=9+3
x=12
(2x +5):7=9
(2x+5)=6×9
2x+5=54
2x=54-5
2x=49
x=49:2
x=24.5
Sper că te-am ajutat.