Question

2x + 23 = 2012  - ( 2012 - 15 )

Answer 1

2x + 23 = 2012 - ( 2012 - 15 )

2x + 23 = 2012 - 2012 + 15

2x + 23 = 15

2x = -8

x = -4

Answer 2

2x + 23 = 2012 - (2012 - 15)

2x + 23 = 2012 - 2012 + 15

2x + 23 = 0 + 15

2x + 23 = 15

2x         = -8

  x         = -4

Answer 3

\(2x+23=2012-\left(2012-15\right)\)

\(2x+23=2012-1997\)

\(2x+23=15\)

\(2x=15-23\)

\(2x=-8\)

\(x=-8:2\)

\(x=-4\)