Time remaining:
how do I work this problem

Mathematics
Tutor: None Selected Time limit: 1 Day

x+y=1     2x-y= -2

Apr 28th, 2015

x+y=1     2x-y= -2

By use of substitution, 

from the first equation......................x+y=1.............y= 1-x

the above equation is substituted in the second equation

2x-y=-2

2x-(1-x)=-2

2x-1+x=-2

3x=-2+1

3x=-1

x= -1/3

y=1-x

y= 1-(-1/3)

y= 1+1/3

y=4/3=1.1/3


Apr 27th, 2015

Did you know? You can earn $20 for every friend you invite to Studypool!
Click here to
Refer a Friend
...
Apr 28th, 2015
...
Apr 28th, 2015
Dec 10th, 2016
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer