Question

1500 : [( 30x+40) : x ] = 30

Answer 1

1500:[(30x+40):x]=30

=>(30x+40):x=1500:30

=>30x:x+40:x=50

=>30+40:x=50

=>40:x=50-30

=>40:x=20

=>x=40:20

=>x=2

Answer 2

thiếu j              

Answer 3

Đúng rồi bạn !

Answer 4

\(\frac{30x+40}{x}\)= 1500 : 30 

\(\frac{30x+40}{x}\)=50 

=>(30x + 40) :x  = 50 

(30x + 40) = 50 . x

=> 30x + 40 = 50x

40= 50x - 30x

40= 20x

x= 40:20 

x=2

Answer 5

x30x+40​= 1500 : 30 

\frac{30x+40}{x}x30x+40​=50 

=>(30x + 40) :x  = 50 

(30x + 40) = 50 . x

=> 30x + 40 = 50x

40= 50x - 30x

40= 20x

x= 40:20 

x=2

Answer 6

địt mẹ

Answer 7

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