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Answer 1 · 2017-10-25T04:48:31

#-25/42#

#PE(MD)(AS)!!!#

#3*6-:7-6*1-:4+5*1-:3#

Put parentheses around pairs of operands in order of PEMDAS

#=((3*6)-:7)-(((6*1)-:4)+((5*1)-:3))#

#=((18)-:7)-(((6)-:4)+((5)-:3))#

#=(18/7)-((6/4)+(5/3))#

Find common denominator

#=(18/7)-((6*3+5*4)/(4*3))#

#=(18/7)-((18+20)/12)#

#=(18/7)-(38/12)#

Simplify

#=(18/7)-(19/6)#

Find common denominator again

#=(18*6-19*7)/(7*6)#

#=(108-133)/(42)#

#=-25/42#