30. [-/1 Points] DETAILS
KAUFEALG9 3.3.040.
Solve the word problem by setting up and solving an algebraic equation,
One more than seven times a certain number is equal to fourteen less than ten times the number. What is the number?

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Ответ:

Gabysh3794

21.03.2020

Mathematics

Step-by-step explanation:

x+y=10

x=10-y

x=10-5

x=5

3y= -3x+30

3(10-y)= -3(10-y)+30

30-3y= -30+3y+30

30+30-30=6y

30=6y

y=5

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30. [-/1 Points] DETAILS KAUFEALG9 3.3.040. Solve the word problem by setting up and solving an algebraic equation, One more than seven times a certain number is equal to fourteen less than ten times the number. What is the number?