SOLUTION: Solve the system by addition.
4x + 8y = –1
8x – 4y = –7
Algebra.Com
Question 72705: Solve the system by addition.
4x + 8y = –1
8x – 4y = –7
Answer by checkley75(3666) (Show Source): You can put this solution on YOUR website!
8X-4Y=-7 NOW MULTIPLY BY -2 & ADD
-8X-16Y=2
--------------------------------
-20Y=-5
Y=-5/-20
Y=1/4 ANSWER
4X+8*1/4=-1
4X+2=-1
4X=-1-2
4X=-3
X=-3/4 ANSWER
PROOF
8*-3/4-4*1/4=-7
-24/4-1=-7
-6-1=-7
-7=-7
RELATED QUESTIONS
Solve the system by addition. Please
4x + 8y = –1
8x – 4y = –7
(answered by checkley71)
Solve the system by addition.
4x+8y=-1... (answered by jim_thompson5910)
Solve the system by addition
4x+8y=-1... (answered by jim_thompson5910,tutor_paul)
Solve the system by addition.
4x – 8y = –5
8x + 4y =... (answered by jim_thompson5910,checkley71)
Solve the system by addition. 5x – 3y = 5 x – 5y = 1
Solve the system by addition.... (answered by jim_thompson5910)
Solve the system by addition.
2x – 8y = –5
4x + 4y = –5
Answer:
x =
y =
(answered by bucky)
Solve the system by addition.
2x – 8y = –5
4x + 4y = –5
(answered by bucky)
solve by addition method.
4x+4y=3... (answered by ikleyn)
Solve the system by addition.
2x - 4y = 7
4x + 2y =... (answered by jim_thompson5910)