Seudónimo
Seudónimo
20-01-2016
Mathematics
contestada
number 21 please and how to do it step by step
Respuesta :
naccy
naccy
20-01-2016
-4y+5x=8
3y-3x=-3 --> divide by (3) y-x=-1
then multiply by (4) 4y-4x=-4
-4y+5x=8
4y-4x=-4
---------------
x=4
then plug x=4 in
4y-4x=-4
4y-4(4)=-4
4y-16=-4
4y=12
y=3
solution: (4;3)
Answer Link
VER TODAS LAS RESPUESTAS ( 87+ )
Otras preguntas
An airline uses many different types of airplanes. The table below shows some of the attributes of the different airplanes.What are the individuals in the data
WILL MARK BRAINLEST IF CORRECT! 1) Burning toast physical or chemical 2) Cooking eggs: physical or chemical 3) Melting butter: physical or chemical 4) Removing
The equation whose roots or solutions are 11 and -2 is: a) x2 + 9x + 22 = 0 b) x2 + 7x + 2 = 0 c) x2 - 9x - 22 = 0 d) x2 - 7x - 2 = 0
integration of 3^x (1-3^(x+1)^9)dx
Federalism has several challenges.What are they ? Write in point.
Which one describes the algebraic expression for the phrase, "twice a number decreased by 5 is greater than 12"? 2n -
UDP stands for user-defined protocol user-defined packets user data packets user datagram protoco
Difference between vegetarian and non vegetarian
PLSSS HELPPPPP- Evaluate the expression. 1 1 4 25 3 Write your answer as a fraction or as a whole or mixed number.
I also like go to cinema and to the disco. find the error
