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which of the ordered pairs in the form (x,y) is the solution equation?

 

6x- y/2 = 14

(-9,3) (2, -4)

 

A) both are solution

B) The frist in not a solution but the second is

C) Neither is a solution

D) the fris is a solutionn but the second is not

 Apr 1, 2016
 #1
avatar+118723 
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Hint

You must do the multiplication and the division Before you do the subtraction!

 Apr 2, 2016
 #2
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How many solutions does the equation have?

a+5=1_(5a+25)

          5

 

A) one solution

B) infinite solutions

C) no solution

 Apr 2, 2016
 #3
avatar+130511 
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(-9,  3)   =  6(-9) - -3/2  =   -54 + 3/2   and this can't posssibly = 14

 

(2, - 4) = 6(2) - (-4/2)  =  12 + 4/2  = 12 + 2   = 14

 

So (2, -4)  is the solution that works......

 

 

 

(a + 5)  = (1/5) (5a + 25)       factor 5 out of the parentheses on the right

 

(a + 5)  = (1/5) (5) (a + 5)

 

(a + 5)  = 1(a + 5)

 

(a + 5)  = (a + 5)      this is an identity......it has infinite solutions

 

 

cool cool cool

 Apr 2, 2016

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