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25-11-2018
Mathematics

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the sum of three times a and four is the same as five yimes a?

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25-11-2018

[tex]\text{the sum of three times a and four}:3a+4\\\\\text{five times a}:5a\\\\The\ equation:\\\\3a+4=5a\qquad\text{subtract 3a from both sides}\\\\4=2a\qquad\text{divide both sides by 2}\\\\2=a\to\boxed{a=2}[/tex]

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