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14-06-2020
Mathematics

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Given that R=2x+9y Find x when y=3 and R=13.

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BrainlyHero BrainlyHero

14-06-2020

R = 2x + 9y [ Given ]

When,

y = 3

R = 13

★ Substituting the values in the above equation

=> 13 = 2x + 9 × 3

=> 13 = 2x + 27

=> 13 - 27 = 2x

=> -14 = 2x

=> x = -14/2

=> x = -7

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