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x/9-4=x/6 and x+k=2x : solve for K

x/9-4=x/6 and x+k=2x : solve for K

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Ishwar S. | University Professor - General and Organic ChemistryUniversity Professor - General and Organ...
-1
Hello Leo
 
First we need to get rid of the numbers 9 and 6 from the denominator. The lowest common multiple for 9 and 6 is 18. Multiply both sides of the equation by 18, you get
 
18[(x/9) - 4] = 18(x/6)
 
2x - 72 = 3x
 
x = -72
 
To solve for k
 
x + k = 2x
 
k = x = -72

Comments

18[(x/9) - 4] = 18(x/6)

2x - 72 = 3x

x = -72

To solve for k

x + k = 2x

k = x = -72.  
 
-72+k= 2(-72)
 
-72+K+72=-144+72
 
K=-72