SOLUTION: (1) 3x+y=1 -6x-3y=-2 (2) 3x-5y=15 x-2y=8 (3)-2x+y=5 8x-4y=12 (4)2(x+1)=-3y+a 3y-10=-4y (5) 3(x-2)+2y=5 6y=2x (6)5x-2y=4 y=-3x+a (7)4x=

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: (1) 3x+y=1 -6x-3y=-2 (2) 3x-5y=15 x-2y=8 (3)-2x+y=5 8x-4y=12 (4)2(x+1)=-3y+a 3y-10=-4y (5) 3(x-2)+2y=5 6y=2x (6)5x-2y=4 y=-3x+a (7)4x=      Log On


   

Question 1084297: (1) 3x+y=1
-6x-3y=-2
(2) 3x-5y=15
x-2y=8
(3)-2x+y=5
8x-4y=12
(4)2(x+1)=-3y+a
3y-10=-4y
(5) 3(x-2)+2y=5
6y=2x
(6)5x-2y=4
y=-3x+a
(7)4x=5y=0
8(x-1)=10y
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
(1) 3x+y=1
-6x-3y=-2
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9x + 3y = 3 ---- 1st eqn times 3
-6x -3y =-2
------------------------ Add
3x = 1
x = 1/3
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3x+y=1
3*(1/3) + y = 1
y = 0
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Do the others the same way.
email via the TY note to check your work.
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(2) 3x-5y=15
x-2y=8
(3)-2x+y=5
8x-4y=12
(4)2(x+1)=-3y+a
3y-10=-4y
(5) 3(x-2)+2y=5
6y=2x
(6)5x-2y=4
y=-3x+a
(7)4x=5y=0
8(x-1)=10y