Ask a New Question

Asked by anna

use substitution method/linear combinations to solve then tell how many solutions they have
-7x+7y=7 and 2x-2y=-18
14 years ago

Answers

Answered by Damon
These lines are parallel. They have the same slope. They never intersect and there is no solution.
You can tell immediately if you arrange them in the form
y = m x + b
m = 7/7 = 2/2 = 1
14 years ago

Related Questions

Use the method of substitution to solve the system. xy=1 4x-y+3=0 Use the substitution method to solve the system y=−3 , y=2x+1 .(1 point) () Use the substitution method to solve the system 2x+2y=6 , 3x+2y=9 .(1 point) Use the substitution method to solve the system 9x−3y=12 , y+6=2x .(1 point) Use the substitution method to solve the system 2.5x+y=−2 , 3x+2y=0 .(1 point) Responses (3,−2... Use the substitution method to solve the system x equals y minus 4, x + 8y = 2 Negative 3 1/3, 2/3... Use the substitution method to solve the system 2x+3y=4 , −4x−6y=−8 .(1 point) Responses n... Use the substitution method to solve the system x=y−4 , x+8y=2 .(1 point) Responses (−313,...
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use