2007-10-18 20:15:54 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
3/4x + 1/2 = 1/3x - 1/4
3/4x - 1/3x = - 1/2 - 1/4
9/12x - 4/12x = -2/4 -1/4
5/12x = -3/4
x = -9/5
2007-10-18 20:31:22 · answer #1 · answered by lon_joe 2 · 0⤊ 2⤋
3/4x + a million/2 = a million/3x - a million/4 assemble like words (3/4 - a million/3)x = -a million/2 - a million/4 multiply by technique of 12 (9 - 4)x = -6 - 3 5x = -9 x = -9/5 examine: (3/4)(-9/5) + a million/2 = (a million/3)(-9/5) - a million/4 -27/20 + 10/20 = -12/20 - 5/20 -17/20 = -17/20
2016-10-21 09:56:45 · answer #2 · answered by Anonymous · 0⤊ 0⤋
3/4x+1/2 = 1/3x - 1/4
find a common denominator
12(3/4x) + 12(1/2) = 12(1/3x) - 12(1/4)
canceling
3(3x) + 6(1) = 4(1x) - 3(1)
9x + 6 = 4x - 3
combine like terms
5x = -9
x= -9/5
2007-10-18 20:25:57 · answer #3 · answered by littlehappy_21 2 · 0⤊ 0⤋
3/4x+1/2=1/3x-1/4 common denominator is 12 multiply both sides by 12
9x + 6 = 4x -3
9x - 4x = -6 -3
5x = -9
x = -9/5
check substitute (-9/5) = x
3/4x+1/2=1/3x-1/4
(3/4)(-9/5)+1/2=(1/3)(-9/5)-1/4
-27/20 + 1/2 = -3/5 - 1/4 multiply both sides by 20
-27 + 10 = -12 -5
-17 = -17 checks out
2007-10-18 20:29:28 · answer #4 · answered by Anonymous · 0⤊ 1⤋
3/4x-1/3x=-1/4-1/2
(9-4)x/12= -1/4-2/4
5/12 x= -3/4
x=-3/4*12/5 = -9/5
2007-10-18 20:25:45 · answer #5 · answered by chasrmck 6 · 0⤊ 1⤋
( 3/4 ) x + 1/2 = ( 1/3 ) x - 1/4
9 x + 6 = 4 x - 3
5 x = - 9
x = - 9 / 5
2007-10-19 08:01:11 · answer #6 · answered by Como 7 · 1⤊ 0⤋
3/4x+1/2=1/3x-1/4
3x/4 + 1/2 = x/3 - 1/4
3x/4 = x/3 -1/4 -1/2
3x/4 - x/3 = -3/4
9x/12 - 4x/12 = -3/4
5x/12 = -3/4
5x = 12 (-3/4)
5x = -36/4
5x = -9
x = -9/5
2007-10-18 20:30:46 · answer #7 · answered by ucenigma 3 · 0⤊ 1⤋
x= -3/4(12/5)
2007-10-18 20:25:43 · answer #8 · answered by ʌ_ʍ ʍr.smile 6 · 0⤊ 1⤋
5 twelfs of x is minus 3 quarters...or minus9 twelves
can you carry on?...could 5x be equal to 9?
2007-10-18 20:25:28 · answer #9 · answered by rod h 3 · 0⤊ 1⤋