Wednesday, 26 September 2018

ALGEBRA 1


If │2x – 7 │= 17; Find  x

Solution

±(2x – 11 )= 17

2x -11= 17    OR   –(2x-11) = 17

2x – 11 = 17    OR   -2x+11=17

2x = 17 + 11    OR   -2x= 17-11

2x = 28     OR   -2x  =   6
2      2                -2        -2

x = 14  OR  x = -3


Hence x = 14 OR x = -3

TRY THIS………………………. 


If │2x – 7 │= 35; Find x

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