Simplify
2x - 3 [ 2 (x - 2y) - (x - y) - 3] + 7
2006-09-16 21:37:40 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Use order of operation
2x- 3 [2x-4y -x + y - 3] + 7 (multiply within the parenthesis)
2x - 3 [x - 3y -3] + 7 (Combine like terms in parenthesis)
ok now you do the rest - just kidding
2x -3x + 9y + 9 + 7 (Multiply the -3 to everything inside the parenthesis)
-x + 9y +16 (Combine like terms)
2006-09-16 21:43:41 · answer #1 · answered by Miss. Tee98 4 · 1⤊ 0⤋
2x - 3 [ 2 (x - 2y) - (x - y) - 3] + 7
= 2x - 3[ 2x - 4y - x + y - 3] + 7
= 2x - 6x +12y +3x - 3y + 9 + 7
= 2x - 6x + 3x + 12y - 3y + 9 + 7
= -x + 9y +16
hence
2x - 3 [ 2 (x - 2y) - (x - y) - 3] + 7 = -x + 9y +16
or
2x - 3 [ 2 (x - 2y) - (x - y) - 3] + 7 = 9y - x +16
2006-09-17 04:48:33 · answer #2 · answered by rav142857 4 · 1⤊ 0⤋
2x - 3 [ 2 (x - 2y) - (x - y) - 3] + 7
= 2x - 3( 2x-4y - x+y -3 ) + 7
= 2x - 3(x - 3y -3 ) +7
= 2x - 3x + 3(3y) + 9 +7
= -x + 9y + 16
2006-09-17 06:06:02 · answer #3 · answered by mahesh 1 · 1⤊ 0⤋
2x - 3(2x - 4y - x + y - 3) + 7 =
2x - 6x + 12y + 3x - 3y + 9 + 7 =
-x + 9y + 16
2006-09-17 04:46:01 · answer #4 · answered by Forest_aude 3 · 0⤊ 0⤋
2x - 3 [ 2 ( x - 2y ) - ( x - y ) - 3 ] + 7
2x - 3 [ 2x - 4y - x + y - 3 ] + 7
2x - 3 [ x - 3y - 3 ] + 7
2x - 3x + 9y + 9 + 7
= - x + 9y + 16
2006-09-17 06:28:51 · answer #5 · answered by crestfallen 5 · 1⤊ 0⤋
Use the order of operations:
parantheses, then multiplication/division, then addition/subtraction, working left to right.
So:
2x-3[2(x-2y)-(x-y)-3]+7
becomes:
2x-6(x-2y)-3(x-y)-9+7
becomes:
2x-6x+12y-3x+3y-2
Collecting like-terms:
-7x+15y-2
2006-09-17 05:27:23 · answer #6 · answered by benmaloney 2 · 0⤊ 1⤋
=2x-3[2x-4y-x+y-3]+7
=2x-3(x-3y-3)+7
=2x-3x+9y+9+7
=-x+9y+16
2006-09-17 06:53:36 · answer #7 · answered by Anonymous · 0⤊ 0⤋
9y-x+16
2006-09-17 04:40:08 · answer #8 · answered by Pedro I. Wong 3 · 0⤊ 0⤋
2x-3[2x-4y-x+y-3]+7
2x-6x+12y+3x+9-3y+7
9y-x+16
2006-09-17 06:46:40 · answer #9 · answered by CHIMPU 2 · 0⤊ 0⤋
2x-3[2x-4y-x+y-3]+7
2x-3(x-3y)+7
2x-3x+9y+7
-x-9y+7
2006-09-17 04:47:25 · answer #10 · answered by SkkARd 3 · 0⤊ 0⤋