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gevorgianermine
@gevorgianermine
July 2022
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ПОМОГИТЕ ПОЖАЛУЙСТА РЕШИТЬ УРАВНЕНИЯ .
1. 1,24 х +3,46 =1,76 х +6,58
2. - (3 y + 7) = 8-2 (8- y)
3.-2 (2-5 х) = 2 ( х-3 ) -5
4. 4 х -2 ( х +7 ) = 2( 3- х)
5. 3(2 х- 11) + 7 =5 ( х - 1 ) +7
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ndusha
Verified answer
1. 1,24 х +3,46 =1,76 х +6,58
1,24х-1,76х=6,58-3,46
-0,52х=3,12
х=-3,12/0,52=-6
2. - (3 y + 7) = 8-2 (8- y)
-3у-7=8-16+2у
-3у-7=-8+2у
-3у-2у=-8+7
-5у=-1
у=1/5=0,2
3.-2 (2-5 х) = 2 ( х-3 ) -5
-4+10х=2х-6-5
-4+10х=2х-11
10х-2х=-11+4
8х=-7
х=-7/8=-0,875
4. 4 х -2 ( х +7 ) = 2( 3- х)
4х-2х-14=6-2х
2х-14=6-2х
2х+2х=6+14
4х=20
х=20/4=5
5. 3(2 х- 11) + 7 =5 ( х - 1 ) +7
6х-33+7=5х-5+7
6х-26=5х+2
6х-5х=2+26
х=28
3 votes
Thanks 2
ekaterinkamiss
1)1,24x-1,76x=6,58-3,46
-0,52x=3,12
x= -6
2)-3y-7=8-16+2y
-3y-2y=8-16+7
-5y=-1
y=0,2
3)-4+10x=2x-6-5
10x-2x=-6-5+4
8x=-7
x=-7/8
4)4x-2x-14=6-2x
4x-2x+2x=6+14
4x=20
x=5
5)6x-33+7=5x-5+7
6x-5x=-5+7+33-7
x=28
2 votes
Thanks 2
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Report "ПОМОГИТЕ ПОЖАЛУЙСТА РЕШИТЬ УРАВНЕНИЯ . 1. 1,24 х +3,46 =1,76 х +6,58 2. - (3 y ..."
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Answers & Comments
Verified answer
1. 1,24 х +3,46 =1,76 х +6,581,24х-1,76х=6,58-3,46
-0,52х=3,12
х=-3,12/0,52=-6
2. - (3 y + 7) = 8-2 (8- y)
-3у-7=8-16+2у
-3у-7=-8+2у
-3у-2у=-8+7
-5у=-1
у=1/5=0,2
3.-2 (2-5 х) = 2 ( х-3 ) -5
-4+10х=2х-6-5
-4+10х=2х-11
10х-2х=-11+4
8х=-7
х=-7/8=-0,875
4. 4 х -2 ( х +7 ) = 2( 3- х)
4х-2х-14=6-2х
2х-14=6-2х
2х+2х=6+14
4х=20
х=20/4=5
5. 3(2 х- 11) + 7 =5 ( х - 1 ) +7
6х-33+7=5х-5+7
6х-26=5х+2
6х-5х=2+26
х=28
-0,52x=3,12
x= -6
2)-3y-7=8-16+2y
-3y-2y=8-16+7
-5y=-1
y=0,2
3)-4+10x=2x-6-5
10x-2x=-6-5+4
8x=-7
x=-7/8
4)4x-2x-14=6-2x
4x-2x+2x=6+14
4x=20
x=5
5)6x-33+7=5x-5+7
6x-5x=-5+7+33-7
x=28