rozwiązaniem równania 3 (2-3x) =x - 4 jest:
A) x=1,
B) X=2,
C) x=3,
D) x=4
Odp. A
bo
3*( 2 - 3*1) = 3*( -1) = - 3 = 1 - 4
------------------------------------------------
6-9x = x - 4
-9x - x = -4-6
-10x =-10 / : (-10)
x=1
odp.A
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Odp. A
bo
3*( 2 - 3*1) = 3*( -1) = - 3 = 1 - 4
------------------------------------------------
6-9x = x - 4
-9x - x = -4-6
-10x =-10 / : (-10)
x=1
odp.A