solve the flolwin systen of equations?

0 ⤊

2x - 3y = -13
y= 2x + 7

2007-05-17 14:59:13 · 4 answers · asked by joseph b 2 in Science & Mathematics ➔ Mathematics

2x - 3(2x+7) = -13
2x - 6x - 21 = -13
-4x = 8
x = -2

2007-05-17 15:04:18 · answer #1 · answered by Shortie216 2 · 0⤊ 0⤋

2x - 3.(2x + 7) = - 13
2x - 6x - 21 = - 13
- 4x = 8
4x = - 8
x = - 2
y = - 4 + 7
y = 3
Solution is x = - 2, y = 3

2007-05-18 02:06:27 · answer #2 · answered by Como 7 · 0⤊ 0⤋

x= -2
y= 3

2007-05-17 15:08:01 · answer #3 · answered by ferretdash 2 · 0⤊ 0⤋

2x-3y=-13
y=2x+7
2x-3(2x+7)=-13
2x-6x-21=-13
-4x-21=-13
-4x=-13+21
-4x=8
-x=8/4
x=-2
y=2x+7
y=2(-2)+7
y=-4+7
y=3

2007-05-17 15:36:01 · answer #4 · answered by sam 3 · 0⤊ 0⤋