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petrowna2345
@petrowna2345
June 2023
1
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1) (3,4-x)*(-4)=-5,6
2) (x-3/4)/3=-1,2
3) 1/4x-0,18=0,5x-0,58
4) 4,2*(3-x)-2*(2,3x-2)=3,6x-3,4
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gemls
1) (3,4-x)*(-4)=-5,6
-13,6+4x=-5,6
4x=-5,6+13,6
4x=8
x=2
2) (x-3/4)/3=-1,2
(4x-3/4)/3-1,2
(4x-3/4)*1/3=-1,2
4x-3/12=-1,2
4x-3=-14,4
4x=-14,4+3
4x=-11,4
x=-2.85
3) 1/4x-0,18=0,5x-0,58
0,25x-0,18=0,5x-0,58
0,25x-0,5x=0,58+0,18
-0,25x=-0,4
x=1,6
4)4,2*(3-x)-2*(2,3x-2)=3,6x-3,4
12,6-4,2x-4,6x+4=3,6x-3,4
16,6-8,8x=3,6x-3,4
-8,8x-3,6x=-3,4-16,6
-12,4x=-20
x=50/31 или 1 19/31
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Answers & Comments
-13,6+4x=-5,6
4x=-5,6+13,6
4x=8
x=2
2) (x-3/4)/3=-1,2
(4x-3/4)/3-1,2
(4x-3/4)*1/3=-1,2
4x-3/12=-1,2
4x-3=-14,4
4x=-14,4+3
4x=-11,4
x=-2.85
3) 1/4x-0,18=0,5x-0,58
0,25x-0,18=0,5x-0,58
0,25x-0,5x=0,58+0,18
-0,25x=-0,4
x=1,6
4)4,2*(3-x)-2*(2,3x-2)=3,6x-3,4
12,6-4,2x-4,6x+4=3,6x-3,4
16,6-8,8x=3,6x-3,4
-8,8x-3,6x=-3,4-16,6
-12,4x=-20
x=50/31 или 1 19/31