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200058389ола
@200058389ола
July 2022
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gnev16
Verified answer
147.
7 - 5 (х+3) = 2
7 - 5х - 15 -2 =0
-5х - 10 =0
-5х= 10
х= -2
148.
4(х+11) + 8 = - 21
4х + 44 + 8 +21 =0
4х + 73 = 0
4х = -73
х= -18,25
149.
4х - (7-х)= -12
4х - 7 + х + 12 =0
5х + 5 =0
5х= -5
×= -1
150.
3(х-1) + х = 17
3х - 3 + х - 17 =0
4х = 20
х= 5
151.
2(х+7) + 3(х-1)=-18
2х + 14 + 3х - 3 + 18=0
5х + 29=0
5х=-29
х= -5,8
152.
7(х-2) + 3(х+8) - 1=0
7х - 14 + 3х + 24 - 1=0
10х +9=0
10х=-9
х=-0,9
153.
13 - 2(х+5) + 3(х-2)=0
13 - 2х - 10 + 3х - 6 =0
х-3=0
х=3
154.
7(2х-1) - 5(2х+7) = -2
14х - 7 - 10х - 35 +2=0
4х -40 =0
4х=40
х=10
155.
5х-2(х+13)=2(х-3)
5х-2х - 26= 2х - 6
3х - 26 - 2х + 6=0
х - 20 =0
х=20
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Answers & Comments
Verified answer
147.7 - 5 (х+3) = 2
7 - 5х - 15 -2 =0
-5х - 10 =0
-5х= 10
х= -2
148.
4(х+11) + 8 = - 21
4х + 44 + 8 +21 =0
4х + 73 = 0
4х = -73
х= -18,25
149.
4х - (7-х)= -12
4х - 7 + х + 12 =0
5х + 5 =0
5х= -5
×= -1
150.
3(х-1) + х = 17
3х - 3 + х - 17 =0
4х = 20
х= 5
151.
2(х+7) + 3(х-1)=-18
2х + 14 + 3х - 3 + 18=0
5х + 29=0
5х=-29
х= -5,8
152.
7(х-2) + 3(х+8) - 1=0
7х - 14 + 3х + 24 - 1=0
10х +9=0
10х=-9
х=-0,9
153.
13 - 2(х+5) + 3(х-2)=0
13 - 2х - 10 + 3х - 6 =0
х-3=0
х=3
154.
7(2х-1) - 5(2х+7) = -2
14х - 7 - 10х - 35 +2=0
4х -40 =0
4х=40
х=10
155.
5х-2(х+13)=2(х-3)
5х-2х - 26= 2х - 6
3х - 26 - 2х + 6=0
х - 20 =0
х=20