Question

( 2x - 181) + 35 = 475

Answer 1

(2x-181)+35=475

2x-181=475-35

2x-181=440

2x=440+181

2x=621

x=621:2

x=310,5

Answer 2

{ 140 - ( 130 - ( 246 - 236)] :2 }

^{20 mu 0 + [ 6 mu 12 : 6 mu 11 ++ (125) mu 3 ]}

Answer 3

2 y đó nha