4. Solving Absolute Value Equations
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Break down the given absolute value equation two separate equations.
x=3/2
Statement | Result |
---|---|
Both absolute values are positive. | ax+b=cx+d |
Both absolute values are negative. | -(ax+b)=-(cx+d) |
Only the left-hand side is negative. | -(ax+b)=cx+d |
Only the right-hand side is negative. | ax+b=-(cx+d) |
lc 3x-4 ≥ 0:3x-4 = (3x-5) & (I) 3x-4 < 0:3x-4 = - (3x-5) & (II)
x= 3/2
a*b/c= a* b/c
Rewrite 4 as 8/2
Rewrite 5 as 10/2
Subtract fractions
|1/2|=1/2
|-1/2|=1/2