Solve the system of equation:?

1 ⤊

Solve the system of equation:?

2x+3y=1
4x-y=29

2007-09-10 16:42:55 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

2 answers

2 x + 3 y = 1
12 x - 3 y = 87------ADD
14 x = 88
x = 88 / 14 = 44 / 7

88 / 7 + 3 y = 1
3 y = 1 - 88 / 7
3 y = 7 / 7 - 88 / 7
3 y = - 81 / 7
y = - 27 / 7

x = 44 / 7 , y = - 27 / 7

2007-09-14 08:44:12 · answer #1 · answered by Como 7 · 1⤊ 0⤋

multiply 1st equation to get 4x+6y=2
Subtract second equation to get 5y= -27. Solve for y, then sub back into either equation to get x.

2007-09-10 16:50:52 · answer #2 · answered by cattbarf 7 · 0⤊ 1⤋