-4,6-4,6=-9,2
-6:0,5=-12
-4,5:(-0,03)=150
-2,5×2m=-5m
-3,4a+2,4a=-1
(-1,3+7,3)×(-1,2)=-7,2
– a – 11 = 4a – 13
– a – 4a = – 13 + 11
-5a = -2
a = 0.4
73 – 2x = 3x + 24
– 2x – 3x = 24 – 73
-5x = -49
x = 9.8
-4,6-4,6=-9,2
-6:0,5=-12
-4,5:(-0,03)=150
-2,5×2m=-5m
-3,4a+2,4a=-1
(-1,3+7,3)×(-1,2)=-7,2
– a – 11 = 4a – 13
– a – 4a = – 13 + 11
-5a = -2
a = 0.4
73 – 2x = 3x + 24
– 2x – 3x = 24 – 73
-5x = -49
x = 9.8
– a – 11 = 4a – 13
– a – 4a = – 13 + 11
-5a = -2
a = 0.4