2007-04-26 01:52:27 · 9 answers · asked by tweetyb 1 in Science & Mathematics ➔ Mathematics
6x=-54
x=-9
2007-04-26 01:57:40 · answer #1 · answered by K R 2 · 0⤊ 1⤋
3x + 54 = -3x
Transfer all variables in the left side and all constant in the left side. To do this, add to both sides their inverses.
3x + 54 = -3x
3x + 3x + 54 = -3x + 3x
6x + 54 = 0
6x + 54 - 54 = 0 - 54
6x = -54
6x/6 = -54/6
x = - 9 ===> the answer
To check
3x + 54 = -3x
3(-9) + 54 = -3(-9)
-27 + 54 = 27
27 = 27
Remember:
The product (or quotient) of two NEGATIVE numbers is always POSITIVE.
The product (or quotient) of a NEGATIVE and a POSITIVE number is always a NEGATIVE number.
2007-04-26 09:06:46 · answer #2 · answered by detektibgapo 5 · 0⤊ 0⤋
3x + 54 = -3x
3x + 3x = - 54
6x = -54
x = -54/6
= -9
2007-04-26 09:41:41 · answer #3 · answered by helping_people 2 · 0⤊ 0⤋
3x + 54 = -3x
+3x to both sides
6x+54=0
-54
6x=-54
/6
x=-9
2007-04-26 08:57:49 · answer #4 · answered by Needs help 2 · 2⤊ 0⤋
add 3x to both sides of the equation.
6x + 54 = 0
subract 54 from both sides.
6x = -54
Then
x = -9
2007-04-26 09:01:45 · answer #5 · answered by Robert L 7 · 1⤊ 0⤋
3x + 54 = -3x
-3x -3x
______________
0 + 54 = -6x
54 = -6x
divide 6
______________
9 = x
basically, you try to isolate the x on one side.
2007-04-28 09:08:16 · answer #6 · answered by Bonnie X 2 · 0⤊ 0⤋
6x = -54
x = -9
2007-04-26 09:46:23 · answer #7 · answered by nayanmange 4 · 0⤊ 0⤋
6x = - 54
x = - 9
2007-04-26 09:23:09 · answer #8 · answered by Como 7 · 0⤊ 0⤋
-9
2007-04-26 08:58:25 · answer #9 · answered by Mydoom 2 · 0⤊ 0⤋