2007-10-23 10:31:47 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
3d + 36 = 8 - 4d
3d + 4d = 8 - 36
7d = - 28
d = - 4
2007-10-23 10:38:25 · answer #1 · answered by Como 7 · 1⤊ 0⤋
3(d+12)=8 - 4d
3d + 36 = 8 - 4d
7d = -28
d = -4
2007-10-23 17:34:42 · answer #2 · answered by aaron.brake 3 · 0⤊ 0⤋
3(d+12)=8-4d
3d +36 = 8 -4d
3d +4d = 8 -36
7d = -28
d = -28/7
d = -4
2007-10-23 19:05:31 · answer #3 · answered by ♥♥felisha♥♥ 5 · 0⤊ 1⤋
3(d+12)= 8-4d
(Distribute the 3 onto the d and the 12)
3d + 36 = 8- 4d
(Add 4d to both sides)
7d + 36= 8
(subtract 36 from both sides)
7d= -28
(divide both sides by 7)
d= -4
:)Thank you:)
2007-10-23 17:38:03 · answer #4 · answered by Anonymous · 0⤊ 1⤋
3(d+12)=8-4d
3d +36 = 8 -4d
3d +4d = 8 -36
7d = -28
d = -28/7
d = -4
CHECK:
3(-4+12) = 8-4(-4)
3 *8 = 8 +16
24 = 24
YES
2007-10-23 17:34:36 · answer #5 · answered by David F 5 · 0⤊ 0⤋
3d+36=8-4d, 3d+4d=-36+8, 7d=-28, d = -4
2007-10-23 17:37:49 · answer #6 · answered by tj is cool 5 · 0⤊ 0⤋
1. Distribute 3.
3d+36= 8-4d
2. Add 4d to both sides(or you can subtract 3d from both sides)
7d+36= 8
3. Subtract 36 from both sides.
7d= -28
4. Divide by 7.
d= -4
2007-10-23 17:38:50 · answer #7 · answered by Anonymous · 0⤊ 1⤋
3(d+12)=8-4d
3d+36=8-4d
3d+36-(3d)=8-4d-(3d)
36-(8)=8-7d-(8)
28=7d
4=d
First, multiply 3 by d+12.
Subtract 3d from both sides to cancel out on one side and get like terms on the same side.
Subtract 8 from both sides to cancel out on one side and get like terms on the same side.
Divide both sides by 7 to find d.
2007-10-23 17:45:46 · answer #8 · answered by mercury_rising 1 · 0⤊ 1⤋
distribute 3
3d+36=8-4d
subtract 3d from both sides
36=8-7d
subtract 8 from both sides
28=-7d
divide by negative 7
-4 = d
2007-10-23 17:35:20 · answer #9 · answered by Blackbird 5 · 0⤊ 1⤋