work it out and show work (if possible)
2006-09-05 11:56:52 · 10 answers · asked by freakychad 2 in Science & Mathematics ➔ Mathematics
-8(-x + 3y) -2[ x + (-4y) ]?
-8 * -x + -8 * 3y - 2 *x + -2 * -4y
8x - 24y - 2x + 8y
8x - 2x -24y + 8y
6x - 16y
I believe that this is right and I hope it helps! Sorry if it isn't right, kids bothering me.
2006-09-05 12:04:08 · answer #1 · answered by jennifermlayne 2 · 0⤊ 0⤋
-8(-x+3y)-2[x+(-4y)]
-8*-x = 8x; -8*3y = -24y;
-2*x = -2x; -2*-4y = 8y; so:
8x-24y-2x+8y
8x-2x = 6x; -24y+8y = -16y; so:
6x-16y
now reduce to Lowest Common Factors:
2(3x-8y)
this shows how to do addition and subtraction.
the only tricky thing is, when you multiply two negative numbers, the answer is positive
2006-09-05 19:16:05 · answer #2 · answered by ronw 4 · 0⤊ 0⤋
First of all NOT an equation but an algebraic expression in 2 variables...
( 8x - 24y) + ( -2x + 8y) multiplying each coefficient by terms in parenthesis, ( ) added for clarity...
6x + (-16 y) collecting like x and y terms
6x -16y ........................... finis
2006-09-05 19:09:48 · answer #3 · answered by rhino9joe 5 · 0⤊ 0⤋
-8(-x + 3y) -2[ x + (-4y) ]
= 8x - 24y - 2x + 8y
= 6x -16y
2006-09-05 19:04:59 · answer #4 · answered by Amar Soni 7 · 0⤊ 0⤋
-8 ( -x + 3y ) -2 ( x + ( 4y ) )
8x - 24y -2x -8y
6x -32y =0
32y = 6x
y = 3/16x
2006-09-05 19:09:07 · answer #5 · answered by ? 3 · 0⤊ 0⤋
-8(-x + 3y) -2[ x + (-4y) ]
(8x-24y) -2[x-4y]
8x-24y-2x+8y
6x-16y
Answer=6x-16y
2006-09-06 07:19:33 · answer #6 · answered by Firdaus 3 · 0⤊ 0⤋
6x - 16y
2006-09-05 19:10:49 · answer #7 · answered by Pete 4 · 0⤊ 0⤋
6x-16y
2006-09-05 19:10:58 · answer #8 · answered by lisab_420 1 · 0⤊ 0⤋
SHOULDN'T YOU BE DOING YOUROWN HOMEWORK?
2006-09-05 19:02:34 · answer #9 · answered by jay.shuler 2 · 0⤊ 0⤋
6x-7y
2006-09-05 18:59:37 · answer #10 · answered by me 2 · 0⤊ 1⤋