Sagot :
Réponse :
Salut,
3x + 10 = 4
3x = 4 - 10
3x = -6
x = -6/3
x = -2
-7x = 21
x = 21/-7
x = -3
x/18 = 3/9
x/18 = 1/3
18/1 * x/18 = 18/1 * 1/3
18x/18 = 18/3
x = 18/3
x = 6
3X+10=4
3X=4-10
3X=-6
3X/3=-6/3
X=-2
-7X=21
-7X/-7=21/-7
X=-3
X/18=3/9
X=18×3/9
X=54/9
X=54÷9/9÷1
X=6