Sagot :
a)
x + 3 = -4
x = -7
b)
4x = 10
x= 10/4
x= 5/2
x= 2,5
c)
5x + 3 = 38
5x = 35
x = 35/5
x = 7
x + 3 = -4
x = -7
b)
4x = 10
x= 10/4
x= 5/2
x= 2,5
c)
5x + 3 = 38
5x = 35
x = 35/5
x = 7