20X+25-1254=40X-20X+2(4+7)-42
2006-11-17 08:41:49 · 8 answers · asked by lovestruck27days27nights 2 in Science & Mathematics ➔ Mathematics
20x + 25 - 1254 = 40x - 20x + 2(4+7) -42
20x - 1229 = 20x + 8 + 14 - 42.
20x - 1229 = 20x - 20
20x - 1229 + 20 = 20x
20x - 1209 = 20x
20x = 20x + 1209
20x - 20x = 1209
0 = 1209?
We get an equality which is never possible.
Therefore, the equation has no real solution
2006-11-19 01:18:56 · answer #1 · answered by Akilesh - Internet Undertaker 7 · 0⤊ 1⤋
20x+25-1254=40x-20x+2(4+7)-42
40x-20x=20x
20x+25-1254=20x+2(4+7)-42
2(4+7)=2(11)=22
20x+25-1254=20x+22-42
-22 -22
20x+3-1254=20x-42
+42 +42
20x+45-1254=20x
20x-1209=20x
-20x -20x
-1209=x
2006-11-17 09:08:45 · answer #2 · answered by Baby-Bop 1 · 0⤊ 1⤋
20X+25-1254=40X-20X+2(4+7)-42
20x+25-1254=40x-20x+8+14-42
20x-40x+20x=1254-25+8+14-42
0x=1209
2006-11-17 09:02:49 · answer #3 · answered by Wondergirl 2 · 0⤊ 0⤋
Bull Feathers!
2006-11-17 09:04:15 · answer #4 · answered by Richard S 6 · 0⤊ 1⤋
The x cancels out. Did you make a mistake on your signs?
2006-11-17 09:45:26 · answer #5 · answered by Max 6 · 0⤊ 0⤋
7 duhhh
2006-11-17 08:44:51 · answer #6 · answered by sammerman2830 2 · 0⤊ 1⤋
No solution. Is this supposed to be a joke?
2006-11-17 08:57:18 · answer #7 · answered by love2eat422 3 · 0⤊ 0⤋
the X cancels.
2006-11-17 08:44:55 · answer #8 · answered by drizzttownz 2 · 0⤊ 0⤋