help me do this math equation and show the formulaes thnx
2006-11-19 06:37:21 · 11 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
fistly put the x's on the same side so we weill have the original eqn being 12x - 4 = 7x - 29
12x - 7x - 4 = 7x - 7x - 29
12x - 7x -4 +4 = 4 - 29
12x - 7x = 4 - 29
5x = -25
Divide both sides by 5 and we get x = -5
2006-11-19 07:21:33 · answer #1 · answered by Anonymous · 0⤊ 0⤋
For this kind of qestion you must isolate the variable 12x-4=7x-29 (add 4 to -29) 12x=7x-29+4 12x-7x= -33 (subtract 7x from 12x) 5x= -33 (divide by 5 on both sides) your final answer should come out to have just one x x= -6.6
2016-05-22 03:55:27 · answer #2 · answered by Anonymous · 0⤊ 0⤋
12x - 4= 7x - 29
subract 7x from both sides and add 4 to both
5x = -25
divide by 5 on both sides
x = -5
2006-11-19 07:26:34 · answer #3 · answered by ^..^ 4 · 0⤊ 0⤋
12x-4=7x-29
-7x -7x
5x-4=-29
+4 +4
5x=-25
divide 5x by 5 also divide -25 by 5
x=-5
2006-11-19 06:55:35 · answer #4 · answered by sweetgirl5900 2 · 0⤊ 0⤋
12x - 4 = 7x - 29
subtract 7x from both sides, add 4 to both sides
5x = -25
divide both sides by 5
x = -5
ANSWER
x = -5
2006-11-19 08:12:26 · answer #5 · answered by trackstarr59 3 · 0⤊ 0⤋
12x - 4 = 7x - 29
subtract 7x from both sides,
and then add 4 to both sides
5x = -25
divide both sides by 5
which get youu....
x = -5
<3 D
2006-11-19 10:09:36 · answer #6 · answered by dee* 2 · 0⤊ 0⤋
12x-4=7x-29.
add 29 to both sides.
12x+25=7x
subtract 12x from both sides.
25=-5x
5= -x.
x can't be negative.
so x= -5
2006-11-19 06:39:24 · answer #7 · answered by Anonymous · 0⤊ 0⤋
12x-4=7x-29
take away 7x
5x-4=29
take away 4
5x=25
divide by 5
x=5
2006-11-19 07:20:26 · answer #8 · answered by prettyprincess 2 · 0⤊ 0⤋
12x-7x=-29+4
5x=-25
x=-5
2006-11-19 07:10:50 · answer #9 · answered by yook 2 · 0⤊ 0⤋
12x-7x=-29+4
5x=-25
x=-5
2006-11-19 06:38:54 · answer #10 · answered by Anonymous · 0⤊ 0⤋