If │4x – 7 │= 21;
Find x
Solution
±(4x – 7 )= 41
4x -7= 41
OR –(4x-7) = 41
4x – 7 = 41
OR -4x+7= 41
4x = 41 +
7 OR -4x= 41-7
4x = 48 OR -4x = 34
4
4 4
4
x = 12
OR x = 17/2
Hence
x = 12 OR x = 17/2
TRY
THIS...............................
If │2x – 6 │= 24;
Find x
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