Question

12-(8-x)=15-x-7

 

Answer 1

12-(8-x)=15-x-7

=>12 - 8 + x = (15 - 7) - x

=>4 + x = 8 - x

=>x + x =8 - 4

=>2.x = 4

=>x = 4 / 2 = 2 

Answer 2

12 - (8 - x) = 15 - x - 7

12 - 8 + x = 15 - x - 7

x + x = 15 - 7 - 12 + 8

2x = 4

x = 2

Answer 3

12-(8-x)=15-x-7

12-8+x=15-x-7

x+x=15-7+8-12

2x=4

x=4:2

x=2

Answer 4

12 - (8 - x) = 15 - x - 7

4 + x = 8 - x

=> 8 - 4 = x + x

4 =2x

x = 2

Answer 5

x= 2

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Answer 6

2

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Answer 7

12-(8-x)=15-x-7

12-8-x=15-x-7

x+x=15-7-12+8

2x=4

x=4:2

x=2

Answer 8

12 - ( 8 - x ) = 15 - x - 7

12 - 8 + x = 15 - x - 7

x + x = 15 - 7 -12 +8

2x = 4

x = 2

Answer 9

12-(8-x)=15-x-7

=12-(8-x)=15-7-x

=12-(8-x)=8-x

=12-8+x=8-x

=4+x=8-x

=8-4=2x

=4=2x

=x=4:2

=x=2

Answer 10

2 

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