0=-two fifth x -2?

3 ⤊

what is the answer

2007-02-05 12:32:56 · 4 answers · asked by sohafunny 1 in Science & Mathematics ➔ Mathematics

The answer is -5.
Solution: 0=-2/5x-2
2/5x=-2
x=(-2)(5/2)
x=-10/2
x=-5

2007-02-05 12:45:54 · answer #1 · answered by Anonymous · 1⤊ 0⤋

-2/5x-2=0

Add 2 from both sides:
-2/5x=2

Multiply both sides by -5/2
x=2(-5/2)
x=-5

Check:
-2/5(-5)-2=0
2-2=0
0=0

2007-02-05 20:46:38 · answer #2 · answered by Anonymous · 0⤊ 0⤋

-(2/5)x-2=0

first add 2 to each side

-(2/5)x=2

then multiply each side by 5

-2x= 10

finally divide each side by -2

x= -5

2007-02-05 20:43:46 · answer #3 · answered by sciencewiz 4 · 1⤊ 0⤋

if x = -5
it would be (-2/5 *-5)-2 =0

2007-02-05 20:40:59 · answer #4 · answered by NIHARIKA M 2 · 1⤊ 0⤋