4+x / 3 - x/4 = -3
(Four plus X over 3 minus X over four equals megative 3?)
(I just wrote the same problem out in words...)
2007-05-14 06:27:30 · 8 answers · asked by Peeko 2 in Science & Mathematics ➔ Mathematics
x = -84
Subtract 4 from each side to isolate the x's and combine the x's, the divide each side by the coefficient of the x's to get the answer is the usual approach:
4 + x/3 - x/4 - 4 = -3 - 4
x/3 -x/4 = -7
4x/12 - 3x/12 = -7
x/12 = -7
(x/12) / (1/12) = (-7) / (1/12)
x/12 * 12 = -7 * 12
x = -84
2007-05-14 06:42:05 · answer #1 · answered by Mike T 2 · 0⤊ 0⤋
4 + x/3 - x/4 = -3
Add negative four to both sides, to isolate those containing variables
4 + x/3 - x/4 + (-4) = -3 + (-4)
Combine constant
x/3 - x/4 = -7
Multiply 12 to both sides to remove denominators
12 [ x/3 - x/4 = -7 ]
4x - 3x = -84
Combine like terms
x = -84
2007-05-14 06:54:17 · answer #2 · answered by 1234 1 · 0⤊ 0⤋
4+x/3 -x/4= -3
=48+4x-3x= -36 [multiplying all by 12]
=> 4x-3x=-36-48
=>x= -84 ans
2007-05-14 06:33:13 · answer #3 · answered by alpha 7 · 0⤊ 0⤋
4 + x/3 - x/4 = -3
x/3 - x/4 = -7
(4x - 3x)/12 = -7
x = - 84
2007-05-14 06:31:51 · answer #4 · answered by Swamy 7 · 0⤊ 0⤋
4 + x/3 - x /4 = -3 taking l.c.m.
48 + 4x -3x = -36
x= -36 -48
x= - 84
2007-05-14 06:33:46 · answer #5 · answered by macline k 2 · 0⤊ 0⤋
4+x / 3 - x/4 = -3
(4*(4+x) -3*x)/12 = -3
16 + 4x - 3x = -36
x = -52
2007-05-14 06:33:08 · answer #6 · answered by dudara 4 · 0⤊ 1⤋
4+x/3=-3+x/4
1+x/3=x/4
4+4x/3=x
4+1/3x=0
x=-12
2007-05-14 06:32:55 · answer #7 · answered by Anonymous · 0⤊ 1⤋
x/3-x/4=-3-4
4x/12-3x/12=1
x/12=1
x=12
2007-05-14 06:36:50 · answer #8 · answered by Handy man 5 · 0⤊ 1⤋