2006-09-05 15:41:51 · 4 answers · asked by tomasgomez2005@sbcglobal.net 1 in Science & Mathematics ➔ Mathematics
well tom ; just do that;
-(12 - 4x) + 8(10 - x) =
-12 + 4x + 80 - 8x =
(4x-8x)+ ( -12 +80)= 0
-4x + 68 = 0
- 4x = -68
x = -4 / - 68 = 4/68 = 17
x = 17
Good Luck.
2006-09-06 02:58:32 · answer #1 · answered by sweetie 5 · 1⤊ 0⤋
You were missing a left parenthesis, or put an extra right parenthesis you didn't need/mean.
Missing left repaired:
-(12)(-4x)+8(10-x) = -(-48x)+(80-8x) = 48x + 80 - 8x = 40x + 80
-((12)-4x)+8(10-x) = -12+4x+80-8x = 68 - 4x
and if the right parenthesis after 12 was a mistake, 68 - 4x is again the answer
2006-09-05 22:54:16 · answer #2 · answered by end_or_phin 2 · 0⤊ 0⤋
Umm if it is -(12)-4x+8(10-x) then the answer might be 68-12x, but check over it.
2006-09-05 22:46:44 · answer #3 · answered by Susan 2 · 0⤊ 0⤋
i dont understand the grouping of the first phrase... theres a parenthesis missing... please clarify
2006-09-05 22:46:41 · answer #4 · answered by dbs1226 3 · 0⤊ 0⤋