Mam rozwiązac równania: a) 2x +6=20 b)23 + 9y= 50 c)8y - 36 = 24 d)-4c - 46 = -2 e) 13+ 2x = 3 f) -7 = 5x+1

a) 2x +6=20 2x = 20 - 6 2x = 14 / : 2 x = 7 b)23 + 9y= 50 9y = 50 - 23 9y = 27 / : 9 y = 3 c)8y - 36 = 24 8y = 24 + 36 8y = 60 / : 8 y = 7,5 d)-4c - 46 = -2 -4c = -2 + 46 -4c = - 44/ : (-4) c = 11 e) 13+ 2x = 3 2x = 3 - 13 2x = -10 / : 2 x = -5 f) -7 = 5x+1 -7 - 1 = 5x -8 = 5x / :5 - 1 3/5 = x

a)2x +6=20 2x=20-6 x= 14 / 2 x=7 b)23 + 9y= 50 9y= 50 - 23 y = 27 /9 y= 3 d)-4c - 46 = -2 -4c = -2 + 46 -4c = 44 razy -1 c = -44 / 4 c = -11 e) 13+ 2x = 3 2x = 3 - 13 x = -5 f) -7 = 5x+1 - 5x = 7 + 1 -5x = 8 razy -1 5x= -8 /5 x = 1,6

a 2x+6=20 2x=-6+20 2x=14 x=7 b 23+9y=50 9y=-23+50 9y=27 y=3 c 8y-36=24 8y=36+24 8y=-12 d -4c - 46= -2 -4c=46+2 -4c=48 c=12 e 13+ 2x=3 2x=-13-3 2x=-10 x=5 f -7=5x+1 5x=7-1 5x=6 LICZE NAJ