9x+7=5x-3
2007-01-12 07:24:21 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
subract 5x and 7 from both sides
4x = -10
divide by 4
x = -10/4
Simplify
x = -5/2
2007-01-12 07:27:08 · answer #1 · answered by chris 2 · 3⤊ 0⤋
X=1
2007-01-12 15:28:27 · answer #2 · answered by Anonymous · 0⤊ 2⤋
9x+7=5x-3 <=> 9x-5x=-3-7 <=> 4x=-10 <=> x=-10/4 <=> x=-5/2
2007-01-12 15:28:22 · answer #3 · answered by HeAvEnLy_PiNk 3 · 0⤊ 0⤋
9x + 7 = 5x - 3
=> 9x - 5x = -3 -7
=> 4x = -10
=> x = -10/4
=> x = -5 / 2
2007-01-12 15:27:47 · answer #4 · answered by Manisha 4 · 0⤊ 1⤋
9X + 7 = 5X - 3
First combine like numbers
9X + 7 = 5X - 3
+3
------
10
Everytime a number crosses over the equals sign it changes either from negative to positive or vice versa.
9X + 10 = 5X
-9X
------
-4X
10 = -4X
10/4 = -4X
2.5 = X
2007-01-12 16:03:22 · answer #5 · answered by Jillian Iris 2 · 0⤊ 0⤋
As you wrote 9x+7=5x-3
So 9x-5x= -7-3
so 4x= -10
so x= - (10/4)
or x= -(2.5) or -2.5
That is it,
2007-01-12 15:31:54 · answer #6 · answered by Ottawan-Canada 3 · 0⤊ 0⤋
9x+7=5x-3
4x= -10
x= (-10/4) OR (-5/2)
2007-01-12 15:28:06 · answer #7 · answered by :-) 3 · 0⤊ 0⤋
9x+7=5x-3
4x=-10
x=-10/4
x= -2 and a half
2007-01-12 15:28:44 · answer #8 · answered by ღ♥ღ latoya 4 · 0⤊ 0⤋
it's easy :
9x+7-(5x-3)=0
9x+7-5x+3=0
4x+10=0
4x=-10
x=-10/4
x= -2.5 or -5/2
2007-01-12 16:56:48 · answer #9 · answered by Arash J 2 · 0⤊ 0⤋
9x+7=5x-3
9x=5x-10
4x/4=-10/4
x=-5/2 or -2.5
2007-01-12 22:57:52 · answer #10 · answered by music_gurl62091 2 · 0⤊ 0⤋