How do you simplify #2x - 5- ( - 5x + 7)#?

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Answer 1 · 2018-03-18T06:55:58

#7x-12#

#2x - 5 - ( -5x+7)#

#=> 2x-5 + 5x -7#

#(as -(-5x+7)= -1(-5x+7)=> -1x-5x+ -1x+7)#

#=>2x+5x-5-7#

#=>(2+5)x-(5+7)#

#=7x-12#

Answer 2 · 2018-03-18T06:57:02

see below

We have, #2x-5-(-5x+7)#
Or, #2x-5+5x-7#
Or, #7x-12# is the simplified version of the given expression