720: [41-(2x+5)]=8 x 5
720:[41-(2x+5)]=40
41-(2x+5)=720:40
41-(2x+5)=18
2x+5=41-18
2x+5=23
2x =23-5
2x =18
x =18:2
x =9
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720: [41-(2x+5)]=8 x 5
720:[41-(2x+5)]=40
41-(2x+5)=720:40
41-(2x+5)=18
2x+5=41-18
2x+5=23
2x =23-5
2x =18
x =18:2
x =9
720 : [ 41 - ( 2x - 5 ) = 2^2 . 5
720÷[41-(2x+5)]=2²×5
d) 720:[41-(2x-5)]=2³.5
720:((5-2x)-(-41))=2^3*5
720:41-(2x-5)=23*5
720:[41-(2x-5)]=23.5
720:[41-(2x-5)]=23.5
tìm x biết 720 : [ 41- (2x -5) ] = 2^3 .5
( 720:[41-(2x-5)]=23.5