Solve the system of equations. -5x+2y=9 y=7x

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asked Jul 20, 2020 14.4k views

5 votes

Solve the system of equations.

-5x+2y=9

y=7x

Mathematics
middle-school

Oldsport asked

by Oldsport

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2 Answers

0 votes

Answer:

uuuuuuuuuuum

Explanation:

maybe it's...

Gpanda answered Jul 21, 2020

by Gpanda

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3 votes

Answer:

x = 1

Explanation:

Substitute y with 7x.

-5x + 2(7x) = 9

Solve parentheses.

-5x + 14x = 9

Combine like terms.

9x = 9

Now solve the equation.

9x = 9

/9 /9

-----------

x = 1

NoNonsense answered Jul 25, 2020

by NoNonsense

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