its a math riddle but im confused
2006-10-30 12:18:25 · 8 answers · asked by chris 1 in Science & Mathematics ➔ Mathematics
2x+2 = x
x + 2 = 0
x = -2
2(-2) + 2 = -2 check
2006-10-30 12:21:42 · answer #1 · answered by Brian D 5 · 0⤊ 0⤋
-2.
-2 x 2 = -4 + 2 = -2
2006-10-30 12:21:26 · answer #2 · answered by Justin V 5 · 0⤊ 0⤋
2 + 2x = x
2006-10-30 12:22:10 · answer #3 · answered by jamesayling06 1 · 0⤊ 0⤋
2x + 2 = x
subtract 2 from both sides
2x = x - 2
subtract x from both sides
2x - x = -2
x = -2
2006-10-30 12:38:15 · answer #4 · answered by nana 2 · 0⤊ 0⤋
the answer is -2 you can set it up like this
2n+2=n then subsatute
2*-2+2=-2
so 2*-2=-4
then -4+2=-2
2006-10-30 12:25:51 · answer #5 · answered by jesusfreak92092 1 · 0⤊ 0⤋
Quick solution:
-------------------
2n + 2 = n
2n - n = - 2
n = - 2
Explained:
--------------
2n + 2 = n
Subtract n from both sides ...
(2n + 2) - n = n - n
2n + 2 - n = 0
Group n ...
2n - n + 2 = 0
1n + 2 = 0
Subtract 2 from both sides ...
1n = - 2
or ...
n = - 2
2006-10-30 12:27:31 · answer #6 · answered by Anonymous · 0⤊ 0⤋
2 + 2n = n
all you have to do is solve for n:
2+2n = n
2n = n - 2
n = -2
hope this helps!
2006-10-30 12:23:42 · answer #7 · answered by obsdabeff 2 · 0⤊ 0⤋
2x + 2 = x
x = -2
ANS : -2
2006-10-30 12:40:48 · answer #8 · answered by Sherman81 6 · 0⤊ 0⤋