Rozwiąż każde ruwnanie.
A)2-x/3=-5x+12/6 x=
B) 2x-x+3/3=1 x=
C)1/2x-x/3=5x/6 x=
D)1,4-3x=-4(x+1,6) x=
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A)
2-x/3=-5x+12/6 /*6
12-2x=-30x+12
28x=0 /:28
x=0
lub
(2-x)/3=(-5x+12)/6 /*6
2(2-x)=-5x+12
4-2x+5x=12
3x=8 /;3
x=8/3
B) 2x-(x+3)/3=1 /*3
6x-x-3=3
5x=6 /:5
x=6/5
C)1/2x-x/3=5x/6 /6x
3-2x²=5x²
-7x²=-3 /(-7)
x²=3/7
x₁=-√(3/7) ; x₂=√(3/7)
D)1,4-3x=-4(x+1,6)
1,4-3x=-4x-6,4
x=-7,8