libbyh71199
libbyh71199
31-03-2014
Mathematics
contestada
Solve the system
-3x+7y=-12
3x+8y=12
Respuesta :
Demon
Demon
31-03-2014
line up both equations according to terms and add
-3x + 7y= -12
+ 3x + 8y=12
--------------------------------------
15y= 0
y= 0 so plug back that into either equations and get x=4
Answer Link
VER TODAS LAS RESPUESTAS ( 91+ )
Otras preguntas
In what state are most nonmetals at room temperature
Mark needs to have $500 by Friday. He already has $136. If he works for 3 days at $11.50 an hour, how many hours will he need to work each day in order to have
a) Work out 5% of 240.
Which equation is the inverse of y=2x^2 - 8
What type of a liquid will have a pH value equal to 12
What does the phrase "fight with your head, not your fists" mean to you?
Trig please help Law of Sines and the Ambiguous Case. In ∆ ABC, a =13, c = 12, and m < A = 55* How many distinct triangles can be drawn given these measureme
Which of the following has no effect on the monthly payment?
What happens when friends have to compete against each other for something that they both want? Explain!
Question 8 of 10Prior to the invention of railroads, where did most city people live?A. In single family homeskmB. On their farmsC. Near where they workedD. In
