2007-11-29 15:47:31 · 7 answers · asked by gigi90232 2 in Science & Mathematics ➔ Mathematics
x + 3 > 6x - 24 + 7
x + 3 > 6x - 17
20 > 5x
x < 4
2007-11-29 21:20:10 · answer #1 · answered by Como 7 · 3⤊ 1⤋
x+3 > 6(x-4)+7
x+3 > 6x - 24 +7
x+3 > 6x - 17
x+3 - x > 6x -17 -x
3 > 5x - 17
3 +17 > 5x
20 > 5x
5x < 20
x < 4
2007-11-29 15:56:57 · answer #2 · answered by LDJ 3 · 0⤊ 0⤋
x+3 > 6(x-4) + 7
=: x+3 -7 > 6(x-4) +7 -7 :: subtract 7 from both sides.
=: (x -4) > 6 (x-4)
=:(x-4) -(x-4) > 6(x-4) -(x-4) :: subtract (x-4) from both sides.
=: 0 > 5 (x-4)
=: 0 > 5x - 20
=: 0 +20 > 5x -20 +20 :: add 20 on both sides.
=: 20 > 5x
=: 5x < 20 :: inversion of sides chages the inequality sign.
=: 5x/5 < 20/5 :: devide bith sides by 5.
=: x < 4.
This is the answer.
2007-11-29 16:03:58 · answer #3 · answered by NeoYatin 2 · 0⤊ 1⤋
x+3>6x-24+7
x+3>6x-17
3+17>6x-x
20>5x
20/5>x
4>x
Answer:
x<4
2007-11-29 15:53:17 · answer #4 · answered by iyiogrenci 6 · 1⤊ 1⤋
x+3>6(x-4)+7
x+3>6x-24+7
x+3>6x-17
20>5x
x<4
2007-11-29 22:16:06 · answer #5 · answered by ANDY 1 · 0⤊ 1⤋
x+3 > 6x-17
x> 6x-14
-5x> -14
x< 14/5
2007-11-29 15:52:09 · answer #6 · answered by sandysdachshund 3 · 1⤊ 0⤋
7 (x + a million) - 6x = -4 ............... unique equation ?7x + 7 - 6x = -4 ............... Distribute 7 (x + a million) ??? x + 7 = -4 .............. integrate 7x and -6x ????? x = -11 ............. Subtract 7 to different area
2016-10-18 09:24:36 · answer #7 · answered by ? 4 · 0⤊ 0⤋