Question

120+5(x-4)=200

Answer 1

120+5(x-4)=200

5(x-4)=200-120

5(x-4)=80

(x-4)=80:5

x-4 =16

x =16+4

x =20

Answer 2

120 + 5( x - 4 ) = 200

5 . 24 + 5( x - 4 ) = 5.40

5( x - 4 ) = 5.40 - 5 . 24

5( x - 4 ) = 5.( 40 - 24 )

5( x - 4 ) = 5. 16

\(\Rightarrow\) x - 4 = 16

\(\Rightarrow\) x = 16 + 4 = 20

Vậy x = 20

Answer 3

120+5(x-4)=200

<->120+5x-20=200

<->5x=200-120+20

<->5x=100

<->x=100/5

<->x=20

Answer 4

120+5(x-4)=200

5(x-4)=200-150

5(x-4)=50

(x-4)=50:5

(x-4)=10

x =10+4

x =14

vậy: x =14

Answer 5

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