Question

( x + 1005 ) + a = 525 + ( 1005 + a )

( b + 4672 ) + x = b + 4674

ai nhanh nhất mình sẽ tick cho 

Answer 1

\(\left(x+1005\right)+a=525+\left(1005+a\right)\)

\(x+1005+a=525+1005+a\)

\(x+a-a=525+1005-1005\)

\(x=525\)

vay \(x=525\)

\(\left(b+4672\right)+x=b+4674\)

\(b+4672+x-b=4674\)

\(x=4674-4672\)

\(x=2\)

vay \(x=2\)

Answer 2

a ) ( x + 1005 ) + a = 525 + ( 1005 + a )

( x + 1005 ) + a = ( 525 + 1005 ) + a

( x + 1005 ) + a = 1530 + a

x + a + a = 1530 - 1005

x,a = 525

b ) ( b + 4672 ) + x = b + 4674

b + 4672 + x     = b + 4674

b + b + x = 4674 - 4672

b,x = 2