Odpowiedzi

2010-03-10T20:19:04+01:00
A)4x+1=3x+5
4x - 3x = 5 - 1
x = 4

4 x 4 + 1 = 3 x 4 + 5
17 = 17

b) x-3+5=2(x-8)
x - 3 + 5 = 2x - 16
-x = -18
x = 18

18 - 3 + 5 = 2(18-8)
20 = 36 - 16
20 = 20
2010-03-10T20:19:54+01:00
A)4x+1=3x+5
4x - 3x = 5 - 1
x = 4

4 x 4 + 1 = 3 x 4 + 5
17 = 17

b) x-3+5=2(x-8)
x - 3 + 5 = 2x - 16
-x = -18
x = 18

18 - 3 + 5 = 2(18-8)
20 = 36 - 16
20 = 20