6(2u +2) + 7u + 3 = 6(u +5) - 2u

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Melvic Ybanez asked Jul 11, 2022

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5 votes

6(2u +2) + 7u + 3 = 6(u +5) - 2u

Mathematics
high-school

Melvic Ybanez asked Jul 11, 2022

by Melvic Ybanez

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$6(2u +2)+ 7u+3 = 6(u+5) -2u\\\\\implies 12u +12 +7u+3 = 6u+30-2u\\\\\implies 19u +15 = 4u +30\\\\\implies 19u -4u = 30 -15\\\\\implies 15u = 15\\\\\implies u =(15)/(15) =1$

Eric Ferreira answered Jul 13, 2022

by Eric Ferreira

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10 votes

Answer:

u=1

Explanation:

6x2u+12+7u+3=6u+30-2u=19u+15=4u+30=19u=4u+15

Truongnm answered Jul 18, 2022

by Truongnm

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