4[n+7] +5{n-3}-2n
4[5x+3y+6]+14{2y-1]
2006-09-13 07:52:59 · 7 answers · asked by soccerstar11 3 in Education & Reference ➔ Homework Help
1.) 4[n+7] +5{n-3}-2n
Step 1: Multiply out the parenthesis and brackets:
4n + 28 + 5n - 15 - 2n
Step 2: Combine like terms:
4n + 5n - 2n + 28 - 15
Step 3: Perform operations:
7n + 13
2.) 4[5x+3y+6]+14{2y-1]
Step 1: Multiply out the parenthesis and brackets:
20x + 12y + 24 + 28y - 14
Step 2: Combine like terms:
20x + 12y + 28y + 24 - 14
Step 3: Perform operations:
20x + 40y + 10
2006-09-13 07:56:27 · answer #1 · answered by ³√carthagebrujah 6 · 2⤊ 0⤋
4[n+7] +5{n-3}-2n
Expand
4n+4(7) +5n-5(3)-2n
4n+28+5n-15-2n
Simplify
7n+13
4[5x+3y+6]+14{2y-1]
20x +12y +24 +28y-14
20x + 40y +10
2006-09-13 14:59:17 · answer #2 · answered by Jenelle 3 · 1⤊ 0⤋
4[n+7] +5{n-3}-2n
4n + 28 + 5n - 15 - 2n
4n + 5n - 2n + 28 - 15
7n + 13
4[5x+3y+6]+14{2y-1]
20x + 12y + 24 + 28y - 14
20x + 12y + 28y + 24 - 14
= 20x + 40y + 10
2006-09-13 14:59:03 · answer #3 · answered by The Ultimate Answerer 3 · 1⤊ 0⤋
Prob one=4n+28+5n-15-2n= 7n+13
When you have a constant outside a parenthesis that means you multiply whatever is inside by the constant outsde in this case we have 4 and then 5. Then just add and substract you'll get 7n+13
Prob two=20x+12y+24+28y-14=20x+40y+10
Same with this probelm.
2006-09-13 15:06:07 · answer #4 · answered by American Wildcat 3 · 0⤊ 0⤋
4n + 28 + 5n -15 -2n = 7n + 13
20x +12y + 24 + 28y -14 = 20x + 40y +10 = 2x + 4y + 1
2006-09-13 14:57:30 · answer #5 · answered by Dennis K 4 · 1⤊ 0⤋
the first one is
4n+28+5n-15-2n
7n+13 is the answer
the second one is
20x+12y+24+28y-14
20x+40y+10 is the answer
2006-09-13 15:01:41 · answer #6 · answered by Leah S 1 · 1⤊ 0⤋
it is 20x+40y+10
2006-09-13 15:18:22 · answer #7 · answered by San Fran Kid 2 · 0⤊ 0⤋