Register
If 4x+3y=10 and 2x+7y=20, determine a coefficient for x that makes the equation below true. _____x+y=0
74.9k views
5 votes
If 4x+3y=10 and 2x+7y=20, determine a coefficient for x that makes the equation below true.

_____x+y=0

User ZeroWorks
by
8.0k points

1 Answer

4 votes
4x + 3y = 10 means 8x + 6y = 20
2x + 7y = 20 as well so
2x + 7y = 8x + 6y
-6x + y = 0

coefficient = -6
User Steve Kaye
by
8.3k points
← Prev Question Next Question →

Related questions

Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Write words to match the expression. 24- ( 6+3)
Link Copied!