Question

279-(7*6+4*8)+(4*9-7*3)=

Answer 1

279-(7*6+4*8)+(4*9-7*3)= 280
7*6=42
4*8=32
42+32=74
 
4*9=36
7*3=21
36+21=57

297-74+57=223+57=280

Answer 2

279-(7*6+4*8)+(4*9-7*3)=220