Example Solve 
Solution: L. C. M. of 4 and 5 is 20
By multiplying each side by 20, we get

Transposing, 40 -20 = 8 x - 5 x

Example Solve ( x + 5 ) ( x - 2) = ( x - 4 ) ( x + 3 ) + 14
Solution: Rewriting, 
Transposing and - x to the left side and - 10 to the right side, we get

Example Solve 
Solution: Expressing decimals as vulgar fractions, we get

By multiplying both sides by 12, the L. C. M. of 2, 3, 4
we get 6 x + 4 x = 3 x + 84
10x = 3x + 84
Transposing, 10 x - 3 x = 84
7x = 84
x = 12
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Index
7.1 Definition 7.2
Simultaneous Equations 7.3
Inequations (Inequalities) 7.4
Absolute Values
Chapter 8
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