3 years ago

EMERGENCY QUESTION!!!

Mathematics

1 answer:

Harman [31]3 years ago

5 0

12+x+7=26 3x-6=15

x+7=26-12 3x=15+6

x+7=14 3x= 21

x= 14-7 x= 21/3

x=7 x=7

42= 13+x+12

42-13=x+12

29= x+12

29-12=x

17=x

x= 17

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