(2) Answers

first substitute the missing values= x-15=30 then collect like terms together =x=30-15 =x=15 so x=15

x-y=30, when y=15 Replace y by 15: x-(15)=30 x-15=30 Recollect terms: x=30+15 x=45 ------

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(2) Answers

first substitute the missing values= x-15=30 then collect like terms together =x=30-15 =x=15 so x=15

x-y=30, when y=15 Replace y by 15: x-(15)=30 x-15=30 Recollect terms: x=30+15 x=45 ------

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