Question

( 750 - 2X ) . 2 + 110 = 500 
 

Answer 1

(750 - 2x) . 2 + 110 = 500 

=> (750 - 2x) . 2 = 500 - 110

=> (750 - 2x) . 2 = 390

=> 750 - 2x = 390 : 2

=> 750 - 2x = 195

=> 2x = 750 - 195

=> 2x  = 555

=> x = 555 : 2

=> x = 277,5

Vậy  x = 277,5.

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Answer 2

( 750 - 2X ) . 2 + 110 = 500

( 750 - 2.X ) . 2           = 500 - 110

( 750 - 2.X ) . 2           = 390

750 - ( 2.X )                = 390 . 2

750 - ( 2.X  )               = 195

           2 . X                 = 750 - 195

           2 . X                 = 555

                X                 = 555 : 2

                X                 = 277.5

Answer 3

\(\left(750-2x\right).2+110=500\)

\(\left(750-2x\right).2=500-110\)

\(\left(750-2x\right).2=390\)

\(750-2x=390:2\)

\(750-2x=195\)

\(2x=750-195\)

\(2x=555\)

\(x=555:2\)

\(x=277,5\)

Answer 4

( 750 - 2x ) . 2 + 110 = 500 

( 750 - 2x ) . 2 = 500 - 110 

( 750 - 2x ) . 2 = 390

( 750 - 2x ) = 390 : 2 

( 750 - 2x ) = 195

2x = 750 - 195 = 555

x = 555 : 2 = 277,5

Hc tốt