Solve to find the value of x. 40-x/3 = 4+x

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04-01-2016
Mathematics

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Solve to find the value of x. 40-x/3 = 4+x

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Exvited Exvited · Answer 1 · 2016-01-04T22:19:59+01:00

Exvited Exvited

04-01-2016

[tex] \frac{40-x}{3} = 4 + x \\ \\ 40 - x = 12 + 3x \\ \\ 40 = 12 + 3x + x \\ \\ 40 = 12 + 4x \\ \\ 40 - 12 = 4x \\ \\ 28 = 4x \\ \\ \frac{28}{4} = x \\ \\ 7 = x \\ \\ x = 7 \\ \\ Answer: \fbox {x = 7} [/tex]

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TSO TSO · Answer 2 · 2016-01-05T23:53:37+01:00

TSO TSO

05-01-2016

[tex] \frac{40-x}{3} = 4 + x\\\\40 - x = 3(4 + x)\\\\40 - x = 12 + 3x\\\\40 = 12 + 4x\\\\4x = 28\\\\\boxed{\bf{x=7}}[/tex]

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