kstone
kstone
15-01-2015
Mathematics
Answered
I need help solving
x+y=4
2x+y=6
Answer :
apologiabiology
apologiabiology
15-01-2015
x+y=4
2x+y=6
make first equation negative
-x-y=-4
add to first equation
2x-x+y-y=6-4
x=2
subsitute
x+y=4
2+y=4
y=2
or
x+y=4
subtract x from both sdies
y=4-x
subsitute 4-x for y in second equation
2x+4-x=6
x+4=6
x=2
Answer Link
VIEW ALL ANSWERS ( 93+ )
Other Questions
what happens to your muscles during a warm up?
Is 200 a whole number and a natural number
True or FalseIn order for a function to be one-to-one, no two independent variable values may yield the same value of the dependent variable
Condition with frequent incidents of sudden, involuntary deep sleep is what?
this is something that isn't a necessity but is nice to have (like a salt shaker or a telephone)
how can you round 17.24578 to the nearest hundredth?
I have settled in Mexico to help convert the Native Americans to Catholicism.What best describes me?
Condition with frequent incidents of sudden, involuntary deep sleep is what?
4/5 of what number is 60
sandy has 200 dollars in her bank account if she writes checks for 19.98 what expression describes the change in her bank account