Nombres négatifs et positifs
-6 + 4 =
-2
3x−5=−2
x = 1
3x−5=2x+1
x = 6
4 + -10
-6
−4y+7=3
x = 1
−4y+12=y−3
y = 3
2 - (-5)
7
2z−8=10
z = 9
2z−8=−z+4
z = 4
-9 - -8 + 6
5
−6a+9= -9
a = 3
−4a-22=3a +6
a = -4
-1 + - 9 - - 7
-3
5b−12=8
b = 4
-5b−12=-b+12
b = - 4