1)24+x=45; 2)x-56=80; 3)x+78=138; 4)45-6x+7x=68; 5)5x-(4x-23)=67; 6)(13-x)-4=3;...

Question

1)24+x=45; 2)x-56=80; 3)x+78=138; 4)45-6x+7x=68; 5)5x-(4x-23)=67; 6)(13-x)-4=3; 7)34+(x+12)=79; 8)(5+x)-14=6; 9) x-6-3=21; 10) 4x+5-(3x-12)=38; 11)(18-x)+3=14; 12) 16-3x-5+4x=19.

Answer 1

1) 24+x=45
х=45-24
х=21

2) x-56=80
х=80+56
х=136

3) x+78=138
х=138-78
х=60

4) 45-6x+7x=68
45+х=68
х=68-45
х=23

5) 5x-(4x-23)=67
5х-4х+23=67
х+23=67
х=67-23
х=44

6)(13-x)-4=3
13-х-4=3
13-4-3=х
х=6

7)34+(x+12)=79
34+х+12=79
х=79-12-34
х=32

8) (5+x)-14=6
5+х-14=6
х=6+14-5
х=15

9) x-6-3=21
х=21+6+3
х=30

10) 4x+5-(3x-12)=38
4x+5-3x+12=38
х=38-5-12
х=21

Answer 2

1)
24+Х=45
Х=45-24
Х=21
2)
Х-56=80
Х=80+56
Х=136
3)
Х+78=138
Х=138-78
Х=60
4)45-6Х+7Х
5)5Х-(4Х-23)
6)
(13-Х)-4=3
3+4=7
Х=13-7
Х=6
7)
34+(Х+12)=79
79-34=45
Х=45-12
Х=33
8)
(5+Х)-14=6
14+6=20
Х=20-5
Х=15
9)
Х-6-3=21
Х=21+6+3
Х=30

Comments

10)4х+5-(3х-12)=38

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4х+5-3х+12=38

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4х-3х=38-5-12

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1х=21

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х=21

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11) (18-х)+3=14

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18-х=14-3

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18-х=11

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х=18-11

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х=7