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Topic review (newest first)
- mohit
- 2005-04-14 06:45:50
I.M Stuck wrote:
what is x when:
3(x+456)+5(56x-45)=0
3x+1368+280x-225=0
283x+1143=0
283x=-1143
x=-1143/283
therefore x= -4.04
- Mr T
- 2005-04-13 01:48:45
i pity the foo' who messes wiv mi homie
- Roraborealis
- 2005-03-23 07:18:13
HAHAHAHAHAHAAHA! I.M. Stuck! That's funny!
- MathsIsFun
- 2005-03-22 22:43:57
Was this set by a teacher, or are you just curious?
3(x+456)+5(56x-45)=0
Multiply out: 3x+3 * 456 + 5 * 56x + 5 *(-45)=0 (i am using * to mean multiply, so it doesn't look like x)
Simplify: 3x + 1368 + 280x -225 = 0
Simplify More: 283x + 1143 = 0
Rearrange (subtract 1143 from both sides): 283x = -1143
Rearrange (divide both sides by 283): x = -1143/283
So, x = -1143/283 = -4.04
- I.M Stuck
- 2005-03-22 21:49:12
what is x when:
3(x+456)+5(56x-45)=0