angie096731 angie096731

02-11-2016
Mathematics

contestada

How do I solve this linear equation?
21+x=30

Respuesta :

ramenmcdonald ramenmcdonald

02-11-2016

21+x=30

30-21 is 8

x=8

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1mathwhiz 1mathwhiz

02-11-2016

simple 30 -21 gives you 9 then 9 +21 gives you 30 that means x =9

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