PILNE!
Rozwiąż równania:
1) -2 (2x-1)= 1/3
2) 3/4 (2-3x) = -6
3) x-2 (x-1) =0,2 (1-2x)
4) 8x- (1+2x)=2 (3x-0,5)
1)-2(2x-1)=1/3
-4x+2=1/3
-4x=1/3-2
-4x=-1 2/3 |:(-4)
x=5/3*1/4
x=5/12
2)3/4(2-3x)=-6
6/4-9/4x=-6
-9/4x=-6-6/4
-9/4x=-7 2/4 |:(-9/4)
x=30/4*4/9
x=10/3=3 1/3
3)x-2(x-1)=0,2(1-2x)
x-2x+2=0,2-0,4x
x-2x+0,4x=0,2-2
-0,6x=-1,8 |:(-0,6)
x=3
4)8x-(1+2x)=2(3x-0,5)
8x-1-2x=6x-1
8x-2x-6x=-1+1
0=0
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1)-2(2x-1)=1/3
-4x+2=1/3
-4x=1/3-2
-4x=-1 2/3 |:(-4)
x=5/3*1/4
x=5/12
2)3/4(2-3x)=-6
6/4-9/4x=-6
-9/4x=-6-6/4
-9/4x=-7 2/4 |:(-9/4)
x=30/4*4/9
x=10/3=3 1/3
3)x-2(x-1)=0,2(1-2x)
x-2x+2=0,2-0,4x
x-2x+0,4x=0,2-2
-0,6x=-1,8 |:(-0,6)
x=3
4)8x-(1+2x)=2(3x-0,5)
8x-1-2x=6x-1
8x-2x-6x=-1+1
0=0