Solve the equation 4x-2y= -12 for y.
A y=2x + 6
B y= -2x +6
C y= 2x -6
D y= -2x - 6
2007-07-07 09:46:16 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
4x - 2y = - 12
Transpose 4x
4x - 2y - 4x = - 4x - 12
- 2y = - 4x - 12
Divide both sides of the equation by - 2
- 2y / - 2 = - 4x / - 2 - 12 / - 2
y = 2x+ 6
- - - - - - - -s-
2007-07-07 10:54:35 · answer #1 · answered by SAMUEL D 7 · 1⤊ 0⤋
isolate y.
4x + 12 = 2y (bring it to the other side)
2x + 6 = y (divide everything by 2)
now you have y all by itself, on one side of the eqn, with no co-efficients.
the answer is A, y = 2x + 6.
2007-07-07 16:55:12 · answer #2 · answered by Anonymous · 0⤊ 0⤋
4x + 12 = 2y
2x + 6 = y
2007-07-07 16:49:12 · answer #3 · answered by Anonymous · 0⤊ 0⤋
a
2007-07-07 16:50:03 · answer #4 · answered by john doe 2 · 0⤊ 0⤋