Question

311 - x + 82 = 46 + ( x - 21 )

Answer 1

311 - x + 82 = 46 + ( x - 21 )

=> (311 + 82) - x = 46 + x - 21

=> 393 - x = 25 + x

=> 393 - 25 = x + x

=> 368 = 2x

=> x = 184

Answer 2

=> 311 - x + 82 = 46 + x - 21

=> 393 - x = x + 25

=> 2x = 368

=> x = 184

Answer 3

\(311-x+82=46+\left(x-21\right)\)

\(393-x=46+x-21\)

\(393-x=x+25\)

\(-x-x=25-393\)

\(-2x=-368\)

\(x=184\)

vậy \(x=184\)

học tốt bo ta

Answer 4

mình chưa học chia số nguyên