Register
Solve the system of equations : y=2x-8 and y=-x-8
134k views
4 votes
Solve the system of equations : y=2x-8 and y=-x-8

User Arie Xiao
by
8.2k points

1 Answer

3 votes
Let y=2x-8 be eq. 1
And y=-x-8 be eq. 2
Multiply eq. 2 by 2
Add up eq. 1 + eq. 2
y + 2y= 2x-8 -2x-16
3y= -24 so y=-8
Replace y in the eq. 2
-8 = -x-8
x=0
User Pdxleif
by
8.5k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

8.6m questions

11.3m answers

Other Questions

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?
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!