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5/6x-2x+4/3=5/3

 Aug 25, 2016
 #1
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Solve for x:
4/3-(7 x)/6 = 5/3

 

Put each term in 4/3-(7 x)/6 over the common denominator 6: 4/3-(7 x)/6 = 8/6-(7 x)/6:
8/6-(7 x)/6 = 5/3

 

8/6-(7 x)/6 = (8-7 x)/6:
(8-7 x)/6 = 5/3

 

Multiply both sides of (8-7 x)/6 = 5/3 by 6:
(6 (8-7 x))/6 = 6×5/3

 

6×5/3 = (6×5)/3:
(6 (8-7 x))/6 = (6×5)/3

 

(6 (8-7 x))/6 = 6/6×(8-7 x) = 8-7 x:
8-7 x = (6×5)/3

 

6/3 = (3×2)/3 = 2:
8-7 x = 2×5

 

2×5 = 10:
8-7 x = 10

 

Subtract 8 from both sides:
(8-8)-7 x = 10-8

 

8-8 = 0:
-7 x = 10-8

 

10-8 = 2:
-7 x = 2

 

Divide both sides of -7 x = 2 by -7:
(-7 x)/(-7) = 2/(-7)

 

(-7)/(-7) = 1:
x = 2/(-7)

 

Multiply numerator and denominator of 2/(-7) by -1:
Answer: |x = (-2)/7

 Aug 25, 2016
 #2
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x/a-1=ax+3

 Jan 18, 2017

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