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14-09-2017
Mathematics

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2.8y + 6 + 0.2y = 5y -15

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DeathTheKid101 DeathTheKid101

14-09-2017

simplify 2.8y + 6 + 0.2y to 3y + 6

subtract 3y from both sides

simplify 5y - 15 - 3y to 2y - 15

add 15 to both sides

simplify 6 + 15 to 21

divide both sides by 2

switch sides

Answer: y = 21/2

*in decimal form this would be 10.5

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