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plaksesh
@plaksesh
July 2022
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ПрофиЗнания
1) -9x+2=17+3x-3
-9x-3x=14-2
-6x=12
x=12/(-6)
x=-2
2)4x+1=7x+28
4x-7x=28-1
-3x=27
x=27/(-3)
x=-9
3) -3x+18 =5x+20
-3x-5x=20-18
-8x=2
x=2/(-8)=1/4=0,25
4) 6x-14=10-8+8x
6x-8x=2+14
-2x=16
x=16/(-2)
x=-8
5)7+2/3 +2x=-2/3x+6 1/3
2 2/3x = 6 1/3- 7 2/3
8x/3 = -4/3
24x=-12
x=-12/24
x=-1/2
6)-3x+24=-x-4
-3x+x=-4-24
-2x=-28
x=-28/-2
x=14
7)8x-6x+3=2x+5
2x-2x=5-3
0≠2
∅
1 votes
Thanks 2
СергейРФ22
1)-9x+2=17+3x-3. 9x-3x=17-3-2. 6x=12. x=2 2) 4x+1=7x+28. 4x-7x=28-1 . -3х=27 х=-9 3)-3х+18=-5х+20. -3х+5x=20-18 2x=2. x=1
0 votes
Thanks 2
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Answers & Comments
-9x-3x=14-2
-6x=12
x=12/(-6)
x=-2
2)4x+1=7x+28
4x-7x=28-1
-3x=27
x=27/(-3)
x=-9
3) -3x+18 =5x+20
-3x-5x=20-18
-8x=2
x=2/(-8)=1/4=0,25
4) 6x-14=10-8+8x
6x-8x=2+14
-2x=16
x=16/(-2)
x=-8
5)7+2/3 +2x=-2/3x+6 1/3
2 2/3x = 6 1/3- 7 2/3
8x/3 = -4/3
24x=-12
x=-12/24
x=-1/2
6)-3x+24=-x-4
-3x+x=-4-24
-2x=-28
x=-28/-2
x=14
7)8x-6x+3=2x+5
2x-2x=5-3
0≠2
∅