A) –1
B) 7
C) –13
D) –5
2007-08-29 05:53:09 · 12 answers · asked by Gabriela R 1 in Science & Mathematics ➔ Mathematics
- 5x = 5
x = - 1
OPTION A)
2007-09-02 00:49:57 · answer #1 · answered by Como 7 · 0⤊ 0⤋
A) -1
Consider the equation like this:
10 + -5x = 15
Next, subtract ten from both sides:
10 + -5x = 15
-10...........-10
And you have:
-5x = 5
A negative multiplied by a negative equals a positive.
So:
-5(-1) = 5
When you put it back into the whole equation, you get:
10 + -5(-1) = 15
or
10 + 5 = 15
Hope that helped.
2007-08-29 13:04:59 · answer #2 · answered by Anonymous 2 · 1⤊ 0⤋
10 - 5x = 15
Transpose 10
10 - 5x - 10 = 15 - 10
Collect like terms
- 5x = 5
Divide both sides of the equation by - 5
- 5x / - 5 = 5 / - 5
x = - 5/5
x = - 1
- - - - - -
The answer is A
- - - - - -s-
2007-08-29 13:11:22 · answer #3 · answered by SAMUEL D 7 · 0⤊ 0⤋
10 - 5x = 15
-5x = 5
x = -1
The answer is A.
2007-08-29 13:00:06 · answer #4 · answered by theansweris 1 · 0⤊ 0⤋
10 - 5x = 15 (subtract 10 from both sides)
-5x = 5 (divide both sides by 5)
x = -1
John
2007-08-29 12:57:35 · answer #5 · answered by John G™ 3 · 0⤊ 0⤋
a) -1
10 - 5(-1) = 15
10 - (-5) = 15
10 + 5 = 15
15 = 15
2007-08-29 13:00:22 · answer #6 · answered by Donny Dutch 4 · 0⤊ 0⤋
-5 x = 5 div by -5 is -1 a
2007-08-30 13:59:26 · answer #7 · answered by J 2 · 0⤊ 0⤋
the answer is a
10-5x=15
-5x=15-10
-5x=5
x=-1
2007-08-29 13:10:06 · answer #8 · answered by Anonymous · 0⤊ 0⤋
a
10 - -5=15
- - 5= +5
2007-08-29 12:57:09 · answer #9 · answered by UBen564 2 · 0⤊ 0⤋
-1 :)
2007-08-29 13:00:33 · answer #10 · answered by Sandy ♥ - semi retired :) 7 · 0⤊ 0⤋