a) = 875 + 5 x 15 - 875

= ( 875 - 875 ) + 5 x 15

= 0 + 5 x 15 

= 75

b) = 19,83 x ( 79 + 21 ) + ( 0,87542 + 0,12458 ) x 17

= 19,83 x 100 + 1,00000 x 17

= 1983 + 17

= 2000

a, 327250.2

b, 2000

a)327250.2

b)2000

X * (12,35 + 12,65) = 875

X * 25 = 875

X = 875 : 25

X = 35

x*(12,35+12,65)=875

x*25=875

x=35

( 87,9 x 125 + 875 x 87,9 ) x ( 3,59 x 100 - 3590 x 0,1 ) 

=( 87,9 x 125 + 875 x 87,9 ) x0

=0

= 0 nhé bạn

875 x 29 = 875 x (30 -1)

= 875 x 30 - 875 x 1

= 26250 - 875 = 25375

Xem lại đề ! 

Is there anything wrong with this topic?

a)\(x=875-\left(50\times7\right)=875-350=525\)

b)\(x=504:14=36\)

a,525

b,36

c,69

d,14620

c)\(x=5760:96=60\)

d)\(x=860\times17=14620\)

x*12.35+x*12.65=875

x*(12.35+x*12.65)=875

x*25=875

x=875:25

x=35

tk nha bạn

thank you bạn

(^_^)

x * (12,35 + 12,65) = 875

x * 25                     = 875

x                             = 875 : 25

x                             = 35

x * 12,35 + x * 12,65 = 875

x * ( 12,35 + 12,65 )  = 875 

x *       25                 = 875

x                             = 875 : 25

x                             =   35