Question

x : 8 + x * 8 - 56,78 = 69,11*2

Answer 1

x : 8 + x * 8 - 56,78 = 69,11 9 * 2 

<=> x * 1/8 + x * 8 - 56,78 = 138,22

<=> x * ( 1/8 + 8 ) = 195

<=> x = 195 : ( 1/8 + 8 )

<=> x = 24

Vậy x= 24

Học tốt  ^.^ !

Answer 2

x:8+x*8-56.78=69.11*2

x:8+x*8-56.78=138.22

x:8+x*8=138.22+56.78

x:8+x*8=195

x*1/8+x*8=195

x*65/8=195

x       =195:65.8

x       =24

Answer 3

Mình nhanh nhất k cho mình nha