Matma
Rozwiąż równania :
a)3x - 2 ( x - 2 ) = 5x
b) 5/6 ( x-6) = 1/6 (12 -x)
c) 2x-2/4 + 1/8 = x/2 tu też po lewej stronie wszystko na 4
d) 8 ( 1-x )+ 3/2 = x - 3/4: jak jest to : 8 (1 - x) + 3 na dwa to to wszystko na dwa
e) -8 ( x-4 ) = -6 -6 (2x - 3)
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3x - 2 ( x - 2 ) = 5x
3x-2x-4=5x
x-5x=4
-4x=4 / : (-4)
X=-1
5/6 ( x-6) = 1/6 (12 -x)
5/6x-5=2-1/6x /*6
6*5/6x-6*5=6*2-6*1/6x
5x-30=12-1x
5x+1x=12+30
6x=42 /:6
X=7
2x-2/4 + 1/8 = x/2 /*8
8*2x-8*2/4+8*1/8=x/2*8
16x-4+1=4x
16x-4x=4-1
12x=3 /:12
X=0,25
8 ( 1-x )+ 3/2 = x - 3/4
8-8x+3/2=x-3/4 /*4
4*8-4*8x+4*3/2=8x-8*3/4
48-48x+6=8x-3
48x-8x=-3-48-6
40x=-57 /:40
X= -1,425
-8 ( x-4 ) = -6 -6 (2x - 3)
-8x+32=-6-12x-18
-8x+12x=-6-18-32
4x= -56 /:4
X= -14