This is one of the problems on my algebra homework. I can't seem to get the end problem correct.
2007-09-20 01:16:30 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
9(x+2)=5[11-2(2-x)+3]
9x+18=5[11-4+2x+3]
9x+18=5[2x+10]
9x+18=10x+50
9x-10x=50-18
-x=32
x= -32 ans
2007-09-20 01:23:08 · answer #1 · answered by alpha 7 · 1⤊ 0⤋
9(x + 2) = 5(11 - 2[2 - x] + 3)
9x + 18 = 5(11 - 4 + 2x + 3)
9x + 18 = 5(10 + 2x)
9x + 18 = 50 + 10x
x = - 32
Answer: x = - 32
Proof (plug x with - 32 in the original equation):
9(- 32 + 2) = 5(11 - 2[2 - {- 32}] + 3)
9 * - 30 = 5(11 - 2[2 + 32] + 3)
- 270 = 5(11 - 2[34] + 3)
- 270 = 5(11 - 68 + 3)
- 270 = 5 * - 54
- 270 = - 270
2007-09-24 06:53:13 · answer #2 · answered by Jun Agruda 7 · 2⤊ 0⤋
pls try this solution:
9(x+2) = 5 [11-2(2-x)+3]
9x+18 = 5 (11 -4 +x +3)
9x+18 = 55 - 20 + 10x +15
9x -10x = 55 - 20 + 15 - 18
-x = 32 (divide both sides by -1)
-x/-1 = 32/-1
x = -32
to check.....replaced X by -32
9(-32 +2) = 5 {11- 2[2-(-32) +3}
9(-30) = 5 (11 -4 -64 + 3)
-270 = 55 - 20 - 320 + 15
-270 = -270
2007-09-20 08:38:24 · answer #3 · answered by janiztf 2 · 0⤊ 1⤋
9(x + 2)= 5[11 - 2(2 - x) + 3]
9x + 18 = 5(14 - 4 + 2x)
9x + 18 = 5(10 + 2x)
9x + 18 = 50 + 10x
x = -32
2007-09-20 08:24:15 · answer #4 · answered by Bananaman 5 · 0⤊ 0⤋
9x+18 = 5(11-4+2x+3)
9x+ 18 = 5(10+2x)
9x + 18 = 50 + 10x
9x - 10x = 50-18
-x = 32
x = -32
2007-09-20 08:23:51 · answer #5 · answered by gab BB 6 · 0⤊ 0⤋
9x + 18 = 5[11 - 4 + 2x + 3]
9x + 18 = 5[10 + 2x]
9x + 18 = 50 + 10x
18 - 50 = 10x - 9x
-32 = x
x = - 32
2007-09-20 08:22:54 · answer #6 · answered by Anonymous · 1⤊ 0⤋
9x + 18 = 5 [ 11 - 4 + 2x + 3 ]
9x + 18 = 5 (10 + 2x )
9x + 18 = 50 + 10x
x = - 32
2007-09-21 06:40:57 · answer #7 · answered by Como 7 · 3⤊ 0⤋
9(x+2)=5[11-2(2-x)+3]
9x+18=5[11-4+2x+3]
9x+18=5[2x+10]
9x+18=10x+50
9x-10x=50-18
-x=32
x= -32
2007-09-20 08:27:08 · answer #8 · answered by Panku 2 · 0⤊ 1⤋
X= -32
2007-09-20 08:23:53 · answer #9 · answered by Anonymous · 0⤊ 0⤋
x=-32.
do the calculation of first bracket first. -2(2-x)= -4+4x. should be easy then
2007-09-20 08:37:40 · answer #10 · answered by Shaon 1 · 0⤊ 1⤋