algebraic expressions

**Leona_Marie** · January 21st 2009, 11:13 AM

-(12/-3) +5(2) = -4+10 =6 my study book tells me this equation = -6 can anyone tell me why and how this equation could = -6

**earboth** · January 21st 2009, 12:14 PM

Originally Posted by Leona_Marie

-(12/-3) +5(2) = -4+10 =6 my study book tells me this equation = -6 can anyone tell me why and how this equation could = -6

$-\left(\frac{12}{-3}\right) + 5 \cdot (2) = -(-4) + 10 = 4 + 10 = 14$

Could it be that the original question reads:

$-\left(\frac{12}{-3}\right) + 5 \cdot (-2) = -(-4) - 10 = 4 - 10 = -6$

**Leona_Marie** · January 21st 2009, 12:37 PM

Originally Posted by earboth

$-\left(\frac{12}{-3}\right) + 5 \cdot (2) = -(-4) + 10 = 4 + 10 = 14$

Could it be that the original question reads:

$-\left(\frac{12}{-3}\right) + 5 \cdot (-2) = -(-4) - 10 = 4 - 10 = -6$

earthboth, what if we did-(12/-3 +2)^2

**earboth** · January 21st 2009, 10:43 PM

Originally Posted by Leona_Marie

earthboth, what if we did-(12/-3 +2)^2

Of course, that is possible too. But there are some more possibilities, for instance:

$-\left(\frac{12}{-3} +5(2)\right) = -(-4+10) = -6$

**Leona_Marie** · January 22nd 2009, 07:04 AM

Originally Posted by earboth

Of course, that is possible too. But there are some more possibilities, for instance:

$-\left(\frac{12}{-3} +5(2)\right) = -(-4+10) = -6$

thank you very much,

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