Register
-4x + y = 9 - 4x +9y= 17 Solve by elimination
157k views
2 votes
-4x + y = 9
- 4x +9y= 17
Solve by elimination

User Jeffery To
by
8.7k points

1 Answer

3 votes

Answer:

(x , y) = (-2 , 1)

Explanation:

multiply both sides by -1

sum the equations vertically to eliminate at least one variable

divide both sides by -8

substitute the value of y into the equation

now solve for x using that y=1

User Scott Yang
by
7.7k points
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
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?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
Link Copied!