solve the euqtion: -x +3 = 7x+8
perform the indicated operation: ( 5-2i) - 2( 3+i)
find the inverse of the relation: y = 2x-4
Thanks for the help!!!!!
2007-01-09 12:05:16 · 6 answers · asked by Mia16 3 in Science & Mathematics ➔ Mathematics
3-8=7x+x
-5=8x
-5/8=x
5-2i-6-2i
-1-4i
-(1+4i)
y+4=2x
(y+4)/2=x
good luck :)
2007-01-09 12:19:30 · answer #1 · answered by aylcn 2 · 0⤊ 0⤋
-x + 3 = 7x + 8
- x + 3 - 7x - 8 = 0
-8x -5 = 0
- 8x = 5
8x = -5
x = -5/8
x = 0.625
(5-2i) - 2(3+i)
(5 - 2i) - (6+2i)
5 - 2i - 6 - 2i
- 1 - 4i
y = 2x - 4
y + 4 = 2x
(y + 4)/2 =x
x = (y + 4)/2
x = y/2 +2
2007-01-09 16:33:36 · answer #2 · answered by robertonereo 4 · 0⤊ 0⤋
I can look at these problems and remember doing them but I havent taken a math class in almost 4 years so I dont know
2007-01-09 12:11:17 · answer #3 · answered by phenom 2 · 0⤊ 0⤋
-x-7x=8-3;
-8x=5;
x=-5/8;
(5-2i)-(6+2i) =-1;
y=1/(2x-4)
2007-01-09 12:12:11 · answer #4 · answered by Luis U 2 · 0⤊ 0⤋
solve: -5/8
perform: 3
2007-01-09 12:09:53 · answer #5 · answered by dixiebaby 2 · 0⤊ 0⤋
SORRY
I GOT KICKED OUT OF MATH B
and sent to
RSP math
2007-01-09 12:09:34 · answer #6 · answered by SiCKnDAhead 2 · 0⤊ 0⤋