-4x = 6(x+5)
I'm trying to find out what X is...
2007-06-24 17:40:24 · 8 answers · asked by Lindsay 3 in Science & Mathematics ➔ Mathematics
-4x = 6(x + 5)
-4x = 6x + 30
-4x - 6x = 6x - 6x + 30
-10x = 30
-10x/-10 = 30/-10
x = -3
_____________
to check:
-4x = 6(x + 5)
-4(-3) = 6( -3 + 5)
12 = 6(2)
12 = 12
2007-06-24 17:48:41 · answer #1 · answered by detektibgapo 5 · 0⤊ 0⤋
-4x = 6x + 30
transpose
-30 = 6x + 4x
-30 = 10x
-30/10 = 10x/10
-3 = x
2007-06-25 02:51:48 · answer #2 · answered by BJ 2 · 0⤊ 0⤋
-4x=6(x + 5)
multiply 6 by the factors in parentheses=
-4x=6x +30
Get the xs on one side and the number on the other=
-10x=30
divide by negative 10 to get x by itself=
x= -3
there you go!
2007-06-25 00:50:02 · answer #3 · answered by Jackie 1 · 0⤊ 0⤋
-4x = 6 (x+5)
by distribution, we have
-4x = 6x+30
by transposition we got
-30 = 6x+4x
-30 = 10x dividing both sides by 10 we have...
x = -3
2007-06-25 00:45:53 · answer #4 · answered by Roger M 2 · 0⤊ 0⤋
-4x = 6(x+5)
-4x = 6x+6*5
-6*5=4x+ 6x
-30=10x
x=-30/10
x=-3
2007-06-25 00:46:24 · answer #5 · answered by LENNONLNX0618 2 · 0⤊ 0⤋
-4x=6(x+5)
-4x=6x+30
-4x-6x=30
-10x=30
-x=30/10
-x=3
x=-3
2007-06-25 02:03:36 · answer #6 · answered by sam 3 · 0⤊ 0⤋
-4x = 6 (X+5)
-4X = 6X+30
-10x = 30
X = -3
darn too slow! hee hee
2007-06-25 00:46:28 · answer #7 · answered by avengress 4 · 0⤊ 0⤋
-4x=6x+30
-10x=30
x=30/-10
x=-3
2007-06-25 03:31:06 · answer #8 · answered by Anonymous · 0⤊ 0⤋